Home / 87,120,605.70-130,680,908.55-73,515,716.10

Finding the Fourth Proportional to 87,120,605.70, 130,680,908.55 and 73,515,716.10

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Solution

The fourth proportional to 87,120,605.70, 130,680,908.55 and 73,515,716.10 is: 110,273,574.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,120,605.70 : 130,680,908.55 = 73,515,716.10 : x
  2. Step 2: Convert to fraction form
    87,120,605.70/130,680,908.55 = 73,515,716.10/x
  3. Step 3: Cross multiply
    87,120,605.70x = 130,680,908.55 × 73,515,716.10
  4. Step 4: Simplify right side
    87,120,605.70x = 9,607,100,572,651,862
  5. Step 5: Solve for x
    x = 9,607,100,572,651,862/87,120,605.70
  6. Step 6: Final answer
    x = 110,273,574.15

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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.