Home / 66,427,489.20-99,641,233.80-40,785,351.60

Finding the Fourth Proportional to 66,427,489.20, 99,641,233.80 and 40,785,351.60

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Solution

The fourth proportional to 66,427,489.20, 99,641,233.80 and 40,785,351.60 is: 61,178,027.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,427,489.20 : 99,641,233.80 = 40,785,351.60 : x
  2. Step 2: Convert to fraction form
    66,427,489.20/99,641,233.80 = 40,785,351.60/x
  3. Step 3: Cross multiply
    66,427,489.20x = 99,641,233.80 × 40,785,351.60
  4. Step 4: Simplify right side
    66,427,489.20x = 4,063,902,754,390,804
  5. Step 5: Solve for x
    x = 4,063,902,754,390,804/66,427,489.20
  6. Step 6: Final answer
    x = 61,178,027.40

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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.