Home / 667,040,562.97-920,516,064.21-369,702,001.87

Finding the Fourth Proportional to 667,040,562.97, 920,516,064.21 and 369,702,001.87

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Solution

The fourth proportional to 667,040,562.97, 920,516,064.21 and 369,702,001.87 is: 510,188,810.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    667,040,562.97 : 920,516,064.21 = 369,702,001.87 : x
  2. Step 2: Convert to fraction form
    667,040,562.97/920,516,064.21 = 369,702,001.87/x
  3. Step 3: Cross multiply
    667,040,562.97x = 920,516,064.21 × 369,702,001.87
  4. Step 4: Simplify right side
    667,040,562.97x = 340,316,631,691,930,496
  5. Step 5: Solve for x
    x = 340,316,631,691,930,496/667,040,562.97
  6. Step 6: Final answer
    x = 510,188,810.97

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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.