Home / 74,416,998.80-111,412,921.80-66,764,248.40

Finding the Fourth Proportional to 74,416,998.80, 111,412,921.80 and 66,764,248.40

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Solution

The fourth proportional to 74,416,998.80, 111,412,921.80 and 66,764,248.40 is: 99,955,656.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,416,998.80 : 111,412,921.80 = 66,764,248.40 : x
  2. Step 2: Convert to fraction form
    74,416,998.80/111,412,921.80 = 66,764,248.40/x
  3. Step 3: Cross multiply
    74,416,998.80x = 111,412,921.80 × 66,764,248.40
  4. Step 4: Simplify right side
    74,416,998.80x = 7,438,399,986,024,975
  5. Step 5: Solve for x
    x = 7,438,399,986,024,975/74,416,998.80
  6. Step 6: Final answer
    x = 99,955,656.72

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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.