Home / 399,434,275.32-551,171,560.95-220,794,032.10

Finding the Fourth Proportional to 399,434,275.32, 551,171,560.95 and 220,794,032.10

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Solution

The fourth proportional to 399,434,275.32, 551,171,560.95 and 220,794,032.10 is: 304,669,375.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,434,275.32 : 551,171,560.95 = 220,794,032.10 : x
  2. Step 2: Convert to fraction form
    399,434,275.32/551,171,560.95 = 220,794,032.10/x
  3. Step 3: Cross multiply
    399,434,275.32x = 551,171,560.95 × 220,794,032.10
  4. Step 4: Simplify right side
    399,434,275.32x = 121,695,391,321,001,408
  5. Step 5: Solve for x
    x = 121,695,391,321,001,408/399,434,275.32
  6. Step 6: Final answer
    x = 304,669,375.77

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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.