Home / 20,920,996.56-31,381,807.88-7,967,862.59

Finding the Fourth Proportional to 20,920,996.56, 31,381,807.88 and 7,967,862.59

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Solution

The fourth proportional to 20,920,996.56, 31,381,807.88 and 7,967,862.59 is: 11,951,913.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,920,996.56 : 31,381,807.88 = 7,967,862.59 : x
  2. Step 2: Convert to fraction form
    20,920,996.56/31,381,807.88 = 7,967,862.59/x
  3. Step 3: Cross multiply
    20,920,996.56x = 31,381,807.88 × 7,967,862.59
  4. Step 4: Simplify right side
    20,920,996.56x = 250,045,933,008,333.25
  5. Step 5: Solve for x
    x = 250,045,933,008,333.25/20,920,996.56
  6. Step 6: Final answer
    x = 11,951,913.11

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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.