Home / 66,428,956.30-99,643,434.45-61,327,122.70

Finding the Fourth Proportional to 66,428,956.30, 99,643,434.45 and 61,327,122.70

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Solution

The fourth proportional to 66,428,956.30, 99,643,434.45 and 61,327,122.70 is: 91,990,684.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,428,956.30 : 99,643,434.45 = 61,327,122.70 : x
  2. Step 2: Convert to fraction form
    66,428,956.30/99,643,434.45 = 61,327,122.70/x
  3. Step 3: Cross multiply
    66,428,956.30x = 99,643,434.45 × 61,327,122.70
  4. Step 4: Simplify right side
    66,428,956.30x = 6,110,845,130,764,557
  5. Step 5: Solve for x
    x = 6,110,845,130,764,557/66,428,956.30
  6. Step 6: Final answer
    x = 91,990,684.05

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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.