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Finding the Fourth Proportional to 347,893,599.52, 520,704,859.12 and 255,752,938.40

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Solution

The fourth proportional to 347,893,599.52, 520,704,859.12 and 255,752,938.40 is: 382,794,618.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,893,599.52 : 520,704,859.12 = 255,752,938.40 : x
  2. Step 2: Convert to fraction form
    347,893,599.52/520,704,859.12 = 255,752,938.40/x
  3. Step 3: Cross multiply
    347,893,599.52x = 520,704,859.12 × 255,752,938.40
  4. Step 4: Simplify right side
    347,893,599.52x = 133,171,797,759,098,048
  5. Step 5: Solve for x
    x = 133,171,797,759,098,048/347,893,599.52
  6. Step 6: Final answer
    x = 382,794,618.65

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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.