Home / 89,820,079.70-134,730,119.55-80,750,153.30

Finding the Fourth Proportional to 89,820,079.70, 134,730,119.55 and 80,750,153.30

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Solution

The fourth proportional to 89,820,079.70, 134,730,119.55 and 80,750,153.30 is: 121,125,229.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,820,079.70 : 134,730,119.55 = 80,750,153.30 : x
  2. Step 2: Convert to fraction form
    89,820,079.70/134,730,119.55 = 80,750,153.30/x
  3. Step 3: Cross multiply
    89,820,079.70x = 134,730,119.55 × 80,750,153.30
  4. Step 4: Simplify right side
    89,820,079.70x = 10,879,477,807,789,828
  5. Step 5: Solve for x
    x = 10,879,477,807,789,828/89,820,079.70
  6. Step 6: Final answer
    x = 121,125,229.95

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1.5x scale

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.