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Finding the Fourth Proportional to 862,337,728.80, 1,293,512,194.80 and 344,811,647.52

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Solution

The fourth proportional to 862,337,728.80, 1,293,512,194.80 and 344,811,647.52 is: 517,219,711.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    862,337,728.80 : 1,293,512,194.80 = 344,811,647.52 : x
  2. Step 2: Convert to fraction form
    862,337,728.80/1,293,512,194.80 = 344,811,647.52/x
  3. Step 3: Cross multiply
    862,337,728.80x = 1,293,512,194.80 × 344,811,647.52
  4. Step 4: Simplify right side
    862,337,728.80x = 446,018,070,976,199,104
  5. Step 5: Solve for x
    x = 446,018,070,976,199,104/862,337,728.80
  6. Step 6: Final answer
    x = 517,219,711.12

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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.