Home / 84,290,088.30-126,435,132.45-54,057,000.30

Finding the Fourth Proportional to 84,290,088.30, 126,435,132.45 and 54,057,000.30

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Solution

The fourth proportional to 84,290,088.30, 126,435,132.45 and 54,057,000.30 is: 81,085,500.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,290,088.30 : 126,435,132.45 = 54,057,000.30 : x
  2. Step 2: Convert to fraction form
    84,290,088.30/126,435,132.45 = 54,057,000.30/x
  3. Step 3: Cross multiply
    84,290,088.30x = 126,435,132.45 × 54,057,000.30
  4. Step 4: Simplify right side
    84,290,088.30x = 6,834,703,992,780,190
  5. Step 5: Solve for x
    x = 6,834,703,992,780,190/84,290,088.30
  6. Step 6: Final answer
    x = 81,085,500.45

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Double scale
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Similar ratio
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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.