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Finding the Fourth Proportional to 672,610,965.59, 928,203,710.42 and 375,253,253.88

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Solution

The fourth proportional to 672,610,965.59, 928,203,710.42 and 375,253,253.88 is: 517,849,812.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,610,965.59 : 928,203,710.42 = 375,253,253.88 : x
  2. Step 2: Convert to fraction form
    672,610,965.59/928,203,710.42 = 375,253,253.88/x
  3. Step 3: Cross multiply
    672,610,965.59x = 928,203,710.42 × 375,253,253.88
  4. Step 4: Simplify right side
    672,610,965.59x = 348,311,462,599,532,416
  5. Step 5: Solve for x
    x = 348,311,462,599,532,416/672,610,965.59
  6. Step 6: Final answer
    x = 517,849,812.78

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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.