Home / 90,626,943.60-135,621,550.80-82,974,193.20

Finding the Fourth Proportional to 90,626,943.60, 135,621,550.80 and 82,974,193.20

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Solution

The fourth proportional to 90,626,943.60, 135,621,550.80 and 82,974,193.20 is: 124,169,350.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,626,943.60 : 135,621,550.80 = 82,974,193.20 : x
  2. Step 2: Convert to fraction form
    90,626,943.60/135,621,550.80 = 82,974,193.20/x
  3. Step 3: Cross multiply
    90,626,943.60x = 135,621,550.80 × 82,974,193.20
  4. Step 4: Simplify right side
    90,626,943.60x = 11,253,088,758,162,816
  5. Step 5: Solve for x
    x = 11,253,088,758,162,816/90,626,943.60
  6. Step 6: Final answer
    x = 124,169,350.87

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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.