Home / 639,440,970.62-882,429,906.99-360,982,494.15

Finding the Fourth Proportional to 639,440,970.62, 882,429,906.99 and 360,982,494.15

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Solution

The fourth proportional to 639,440,970.62, 882,429,906.99 and 360,982,494.15 is: 498,156,613.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,440,970.62 : 882,429,906.99 = 360,982,494.15 : x
  2. Step 2: Convert to fraction form
    639,440,970.62/882,429,906.99 = 360,982,494.15/x
  3. Step 3: Cross multiply
    639,440,970.62x = 882,429,906.99 × 360,982,494.15
  4. Step 4: Simplify right side
    639,440,970.62x = 318,541,748,737,802,688
  5. Step 5: Solve for x
    x = 318,541,748,737,802,688/639,440,970.62
  6. Step 6: Final answer
    x = 498,156,613.94

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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.