Home / 123,840,939.60-185,761,409.40-66,445,311.60

Finding the Fourth Proportional to 123,840,939.60, 185,761,409.40 and 66,445,311.60

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Solution

The fourth proportional to 123,840,939.60, 185,761,409.40 and 66,445,311.60 is: 99,667,967.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,840,939.60 : 185,761,409.40 = 66,445,311.60 : x
  2. Step 2: Convert to fraction form
    123,840,939.60/185,761,409.40 = 66,445,311.60/x
  3. Step 3: Cross multiply
    123,840,939.60x = 185,761,409.40 × 66,445,311.60
  4. Step 4: Simplify right side
    123,840,939.60x = 12,342,974,730,838,170
  5. Step 5: Solve for x
    x = 12,342,974,730,838,170/123,840,939.60
  6. Step 6: Final answer
    x = 99,667,967.40

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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.