Home / 90,626,068.44-135,981,617.94-45,191,405.88

Finding the Fourth Proportional to 90,626,068.44, 135,981,617.94 and 45,191,405.88

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Solution

The fourth proportional to 90,626,068.44, 135,981,617.94 and 45,191,405.88 is: 67,808,309.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,626,068.44 : 135,981,617.94 = 45,191,405.88 : x
  2. Step 2: Convert to fraction form
    90,626,068.44/135,981,617.94 = 45,191,405.88/x
  3. Step 3: Cross multiply
    90,626,068.44x = 135,981,617.94 × 45,191,405.88
  4. Step 4: Simplify right side
    90,626,068.44x = 6,145,200,488,545,630
  5. Step 5: Solve for x
    x = 6,145,200,488,545,630/90,626,068.44
  6. Step 6: Final answer
    x = 67,808,309.40

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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.