Home / 91,995,414.30-137,993,121.45-86,326,710.30

Finding the Fourth Proportional to 91,995,414.30, 137,993,121.45 and 86,326,710.30

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Solution

The fourth proportional to 91,995,414.30, 137,993,121.45 and 86,326,710.30 is: 129,490,065.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,995,414.30 : 137,993,121.45 = 86,326,710.30 : x
  2. Step 2: Convert to fraction form
    91,995,414.30/137,993,121.45 = 86,326,710.30/x
  3. Step 3: Cross multiply
    91,995,414.30x = 137,993,121.45 × 86,326,710.30
  4. Step 4: Simplify right side
    91,995,414.30x = 11,912,492,218,806,864
  5. Step 5: Solve for x
    x = 11,912,492,218,806,864/91,995,414.30
  6. Step 6: Final answer
    x = 129,490,065.45

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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.