Home / 1,259,713,048.80-1,889,569,573.20-647,493,016.80

Finding the Fourth Proportional to 1,259,713,048.80, 1,889,569,573.20 and 647,493,016.80

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Solution

The fourth proportional to 1,259,713,048.80, 1,889,569,573.20 and 647,493,016.80 is: 971,239,525.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,259,713,048.80 : 1,889,569,573.20 = 647,493,016.80 : x
  2. Step 2: Convert to fraction form
    1,259,713,048.80/1,889,569,573.20 = 647,493,016.80/x
  3. Step 3: Cross multiply
    1,259,713,048.80x = 1,889,569,573.20 × 647,493,016.80
  4. Step 4: Simplify right side
    1,259,713,048.80x = 1,223,483,103,404,756,480
  5. Step 5: Solve for x
    x = 1,223,483,103,404,756,480/1,259,713,048.80
  6. Step 6: Final answer
    x = 971,239,525.20

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Double scale
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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.