Home / 1,048,896,556.80-1,573,344,835.20-640,749,868.80

Finding the Fourth Proportional to 1,048,896,556.80, 1,573,344,835.20 and 640,749,868.80

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Solution

The fourth proportional to 1,048,896,556.80, 1,573,344,835.20 and 640,749,868.80 is: 961,124,803.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,048,896,556.80 : 1,573,344,835.20 = 640,749,868.80 : x
  2. Step 2: Convert to fraction form
    1,048,896,556.80/1,573,344,835.20 = 640,749,868.80/x
  3. Step 3: Cross multiply
    1,048,896,556.80x = 1,573,344,835.20 × 640,749,868.80
  4. Step 4: Simplify right side
    1,048,896,556.80x = 1,008,120,496,731,557,632
  5. Step 5: Solve for x
    x = 1,008,120,496,731,557,632/1,048,896,556.80
  6. Step 6: Final answer
    x = 961,124,803.20

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Half scale
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Double scale
Find fourth proportional to 1,048,896,557.80, 1,573,344,836.70 and 640,749,869.80
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.