Home / 82,703,450.80-124,055,176.20-81,427,992.40

Finding the Fourth Proportional to 82,703,450.80, 124,055,176.20 and 81,427,992.40

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Solution

The fourth proportional to 82,703,450.80, 124,055,176.20 and 81,427,992.40 is: 122,141,988.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,703,450.80 : 124,055,176.20 = 81,427,992.40 : x
  2. Step 2: Convert to fraction form
    82,703,450.80/124,055,176.20 = 81,427,992.40/x
  3. Step 3: Cross multiply
    82,703,450.80x = 124,055,176.20 × 81,427,992.40
  4. Step 4: Simplify right side
    82,703,450.80x = 10,101,563,944,794,262
  5. Step 5: Solve for x
    x = 10,101,563,944,794,262/82,703,450.80
  6. Step 6: Final answer
    x = 122,141,988.60

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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.