Home / 89,808,212.30-134,712,318.45-80,720,571.20

Finding the Fourth Proportional to 89,808,212.30, 134,712,318.45 and 80,720,571.20

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Solution

The fourth proportional to 89,808,212.30, 134,712,318.45 and 80,720,571.20 is: 121,080,856.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,808,212.30 : 134,712,318.45 = 80,720,571.20 : x
  2. Step 2: Convert to fraction form
    89,808,212.30/134,712,318.45 = 80,720,571.20/x
  3. Step 3: Cross multiply
    89,808,212.30x = 134,712,318.45 × 80,720,571.20
  4. Step 4: Simplify right side
    89,808,212.30x = 10,874,055,292,960,298
  5. Step 5: Solve for x
    x = 10,874,055,292,960,298/89,808,212.30
  6. Step 6: Final answer
    x = 121,080,856.80

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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.