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Finding the Fourth Proportional to 499,484,753.80, 749,227,130.70 and 491,832,003.40

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Solution

The fourth proportional to 499,484,753.80, 749,227,130.70 and 491,832,003.40 is: 737,748,005.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,484,753.80 : 749,227,130.70 = 491,832,003.40 : x
  2. Step 2: Convert to fraction form
    499,484,753.80/749,227,130.70 = 491,832,003.40/x
  3. Step 3: Cross multiply
    499,484,753.80x = 749,227,130.70 × 491,832,003.40
  4. Step 4: Simplify right side
    499,484,753.80x = 368,493,880,693,814,656
  5. Step 5: Solve for x
    x = 368,493,880,693,814,656/499,484,753.80
  6. Step 6: Final answer
    x = 737,748,005.10

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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.