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Finding the Fourth Proportional to 374,909,495.87, 517,335,717.21 and 207,641,375.39

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Solution

The fourth proportional to 374,909,495.87, 517,335,717.21 and 207,641,375.39 is: 286,523,283.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,909,495.87 : 517,335,717.21 = 207,641,375.39 : x
  2. Step 2: Convert to fraction form
    374,909,495.87/517,335,717.21 = 207,641,375.39/x
  3. Step 3: Cross multiply
    374,909,495.87x = 517,335,717.21 × 207,641,375.39
  4. Step 4: Simplify right side
    374,909,495.87x = 107,420,299,859,856,480
  5. Step 5: Solve for x
    x = 107,420,299,859,856,480/374,909,495.87
  6. Step 6: Final answer
    x = 286,523,283.73

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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.