Home / 66,235,672.92-91,389,592.86-55,679,198.20

Finding the Fourth Proportional to 66,235,672.92, 91,389,592.86 and 55,679,198.20

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Solution

The fourth proportional to 66,235,672.92, 91,389,592.86 and 55,679,198.20 is: 76,824,149.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,235,672.92 : 91,389,592.86 = 55,679,198.20 : x
  2. Step 2: Convert to fraction form
    66,235,672.92/91,389,592.86 = 55,679,198.20/x
  3. Step 3: Cross multiply
    66,235,672.92x = 91,389,592.86 × 55,679,198.20
  4. Step 4: Simplify right side
    66,235,672.92x = 5,088,499,254,040,771
  5. Step 5: Solve for x
    x = 5,088,499,254,040,771/66,235,672.92
  6. Step 6: Final answer
    x = 76,824,149.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.