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Finding the Fourth Proportional to 672,610,985.56, 928,203,737.97 and 375,253,273.87

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Solution

The fourth proportional to 672,610,985.56, 928,203,737.97 and 375,253,273.87 is: 517,849,840.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,610,985.56 : 928,203,737.97 = 375,253,273.87 : x
  2. Step 2: Convert to fraction form
    672,610,985.56/928,203,737.97 = 375,253,273.87/x
  3. Step 3: Cross multiply
    672,610,985.56x = 928,203,737.97 × 375,253,273.87
  4. Step 4: Simplify right side
    672,610,985.56x = 348,311,491,490,700,800
  5. Step 5: Solve for x
    x = 348,311,491,490,700,800/672,610,985.56
  6. Step 6: Final answer
    x = 517,849,840.35

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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.