Home / 472,395,943.70-708,593,915.55-429,313,793.30

Finding the Fourth Proportional to 472,395,943.70, 708,593,915.55 and 429,313,793.30

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Solution

The fourth proportional to 472,395,943.70, 708,593,915.55 and 429,313,793.30 is: 643,970,689.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,395,943.70 : 708,593,915.55 = 429,313,793.30 : x
  2. Step 2: Convert to fraction form
    472,395,943.70/708,593,915.55 = 429,313,793.30/x
  3. Step 3: Cross multiply
    472,395,943.70x = 708,593,915.55 × 429,313,793.30
  4. Step 4: Simplify right side
    472,395,943.70x = 304,209,141,794,070,336
  5. Step 5: Solve for x
    x = 304,209,141,794,070,336/472,395,943.70
  6. Step 6: Final answer
    x = 643,970,689.95

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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.