Home / 27,215,087.70-40,822,631.55-20,412,642.90

Finding the Fourth Proportional to 27,215,087.70, 40,822,631.55 and 20,412,642.90

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Solution

The fourth proportional to 27,215,087.70, 40,822,631.55 and 20,412,642.90 is: 30,618,964.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,215,087.70 : 40,822,631.55 = 20,412,642.90 : x
  2. Step 2: Convert to fraction form
    27,215,087.70/40,822,631.55 = 20,412,642.90/x
  3. Step 3: Cross multiply
    27,215,087.70x = 40,822,631.55 × 20,412,642.90
  4. Step 4: Simplify right side
    27,215,087.70x = 833,297,800,068,423.38
  5. Step 5: Solve for x
    x = 833,297,800,068,423.38/27,215,087.70
  6. Step 6: Final answer
    x = 30,618,964.35

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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.