Home / 80,798,780.80-121,215,213.60-26,207,126.56

Finding the Fourth Proportional to 80,798,780.80, 121,215,213.60 and 26,207,126.56

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Solution

The fourth proportional to 80,798,780.80, 121,215,213.60 and 26,207,126.56 is: 39,316,217.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,798,780.80 : 121,215,213.60 = 26,207,126.56 : x
  2. Step 2: Convert to fraction form
    80,798,780.80/121,215,213.60 = 26,207,126.56/x
  3. Step 3: Cross multiply
    80,798,780.80x = 121,215,213.60 × 26,207,126.56
  4. Step 4: Simplify right side
    80,798,780.80x = 3,176,702,443,812,633
  5. Step 5: Solve for x
    x = 3,176,702,443,812,633/80,798,780.80
  6. Step 6: Final answer
    x = 39,316,217.55

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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.