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Finding the Fourth Proportional to 347,935,689.72, 480,153,149.64 and 204,887,693.88

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Solution

The fourth proportional to 347,935,689.72, 480,153,149.64 and 204,887,693.88 is: 282,746,135.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,935,689.72 : 480,153,149.64 = 204,887,693.88 : x
  2. Step 2: Convert to fraction form
    347,935,689.72/480,153,149.64 = 204,887,693.88/x
  3. Step 3: Cross multiply
    347,935,689.72x = 480,153,149.64 × 204,887,693.88
  4. Step 4: Simplify right side
    347,935,689.72x = 98,377,471,538,958,144
  5. Step 5: Solve for x
    x = 98,377,471,538,958,144/347,935,689.72
  6. Step 6: Final answer
    x = 282,746,135.12

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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.