Home / 485,553,256.15-669,910,519.32-297,185,177.11

Finding the Fourth Proportional to 485,553,256.15, 669,910,519.32 and 297,185,177.11

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Solution

The fourth proportional to 485,553,256.15, 669,910,519.32 and 297,185,177.11 is: 410,021,915.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,553,256.15 : 669,910,519.32 = 297,185,177.11 : x
  2. Step 2: Convert to fraction form
    485,553,256.15/669,910,519.32 = 297,185,177.11/x
  3. Step 3: Cross multiply
    485,553,256.15x = 669,910,519.32 × 297,185,177.11
  4. Step 4: Simplify right side
    485,553,256.15x = 199,087,476,331,966,304
  5. Step 5: Solve for x
    x = 199,087,476,331,966,304/485,553,256.15
  6. Step 6: Final answer
    x = 410,021,915.85

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.