Home / 1,269,596,196.80-1,904,394,295.20-349,614,526.40

Finding the Fourth Proportional to 1,269,596,196.80, 1,904,394,295.20 and 349,614,526.40

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Solution

The fourth proportional to 1,269,596,196.80, 1,904,394,295.20 and 349,614,526.40 is: 524,421,789.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,269,596,196.80 : 1,904,394,295.20 = 349,614,526.40 : x
  2. Step 2: Convert to fraction form
    1,269,596,196.80/1,904,394,295.20 = 349,614,526.40/x
  3. Step 3: Cross multiply
    1,269,596,196.80x = 1,904,394,295.20 × 349,614,526.40
  4. Step 4: Simplify right side
    1,269,596,196.80x = 665,803,909,595,209,728
  5. Step 5: Solve for x
    x = 665,803,909,595,209,728/1,269,596,196.80
  6. Step 6: Final answer
    x = 524,421,789.60

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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.