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Finding the Fourth Proportional to 353,663,463.60, 529,991,310.60 and 260,822,689.20

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Solution

The fourth proportional to 353,663,463.60, 529,991,310.60 and 260,822,689.20 is: 390,862,424.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,663,463.60 : 529,991,310.60 = 260,822,689.20 : x
  2. Step 2: Convert to fraction form
    353,663,463.60/529,991,310.60 = 260,822,689.20/x
  3. Step 3: Cross multiply
    353,663,463.60x = 529,991,310.60 × 260,822,689.20
  4. Step 4: Simplify right side
    353,663,463.60x = 138,233,758,883,324,464
  5. Step 5: Solve for x
    x = 138,233,758,883,324,464/353,663,463.60
  6. Step 6: Final answer
    x = 390,862,424.62

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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.