Home / 82,944,081.20-124,416,121.80-76,897,463.60

Finding the Fourth Proportional to 82,944,081.20, 124,416,121.80 and 76,897,463.60

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Solution

The fourth proportional to 82,944,081.20, 124,416,121.80 and 76,897,463.60 is: 115,346,195.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,944,081.20 : 124,416,121.80 = 76,897,463.60 : x
  2. Step 2: Convert to fraction form
    82,944,081.20/124,416,121.80 = 76,897,463.60/x
  3. Step 3: Cross multiply
    82,944,081.20x = 124,416,121.80 × 76,897,463.60
  4. Step 4: Simplify right side
    82,944,081.20x = 9,567,284,197,368,666
  5. Step 5: Solve for x
    x = 9,567,284,197,368,666/82,944,081.20
  6. Step 6: Final answer
    x = 115,346,195.40

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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.