Home / 12,643,245,857.72-18,966,034,565.42-4,134,672,771.75

Finding the Fourth Proportional to 12,643,245,857.72, 18,966,034,565.42 and 4,134,672,771.75

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Solution

The fourth proportional to 12,643,245,857.72, 18,966,034,565.42 and 4,134,672,771.75 is: 6,202,390,397.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,643,245,857.72 : 18,966,034,565.42 = 4,134,672,771.75 : x
  2. Step 2: Convert to fraction form
    12,643,245,857.72/18,966,034,565.42 = 4,134,672,771.75/x
  3. Step 3: Cross multiply
    12,643,245,857.72x = 18,966,034,565.42 × 4,134,672,771.75
  4. Step 4: Simplify right side
    12,643,245,857.72x = 78,418,346,705,690,755,072
  5. Step 5: Solve for x
    x = 78,418,346,705,690,755,072/12,643,245,857.72
  6. Step 6: Final answer
    x = 6,202,390,397.86

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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.