Home / 90,019,149.80-135,012,999.90-25,307,591

Finding the Fourth Proportional to 90,019,149.80, 135,012,999.90 and 25,307,591

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Solution

The fourth proportional to 90,019,149.80, 135,012,999.90 and 25,307,591 is: 37,956,965.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,019,149.80 : 135,012,999.90 = 25,307,591 : x
  2. Step 2: Convert to fraction form
    90,019,149.80/135,012,999.90 = 25,307,591/x
  3. Step 3: Cross multiply
    90,019,149.80x = 135,012,999.90 × 25,307,591
  4. Step 4: Simplify right side
    90,019,149.80x = 3,416,853,781,152,241
  5. Step 5: Solve for x
    x = 3,416,853,781,152,241/90,019,149.80
  6. Step 6: Final answer
    x = 37,956,965.70

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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.