Home / 66,979,459.56-100,451,255.92-18,445,779.12

Finding the Fourth Proportional to 66,979,459.56, 100,451,255.92 and 18,445,779.12

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Solution

The fourth proportional to 66,979,459.56, 100,451,255.92 and 18,445,779.12 is: 27,663,729.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,979,459.56 : 100,451,255.92 = 18,445,779.12 : x
  2. Step 2: Convert to fraction form
    66,979,459.56/100,451,255.92 = 18,445,779.12/x
  3. Step 3: Cross multiply
    66,979,459.56x = 100,451,255.92 × 18,445,779.12
  4. Step 4: Simplify right side
    66,979,459.56x = 1,852,901,679,026,912.50
  5. Step 5: Solve for x
    x = 1,852,901,679,026,912.50/66,979,459.56
  6. Step 6: Final answer
    x = 27,663,729.91

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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.