Home / 20,730,076.56-31,065,885.36-9,788,591.88

Finding the Fourth Proportional to 20,730,076.56, 31,065,885.36 and 9,788,591.88

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Solution

The fourth proportional to 20,730,076.56, 31,065,885.36 and 9,788,591.88 is: 14,669,085.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,730,076.56 : 31,065,885.36 = 9,788,591.88 : x
  2. Step 2: Convert to fraction form
    20,730,076.56/31,065,885.36 = 9,788,591.88/x
  3. Step 3: Cross multiply
    20,730,076.56x = 31,065,885.36 × 9,788,591.88
  4. Step 4: Simplify right side
    20,730,076.56x = 304,091,273,179,906.88
  5. Step 5: Solve for x
    x = 304,091,273,179,906.88/20,730,076.56
  6. Step 6: Final answer
    x = 14,669,085.87

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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.