Home / 18,711,279.40-28,066,919.10-16,397,141.80

Finding the Fourth Proportional to 18,711,279.40, 28,066,919.10 and 16,397,141.80

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Solution

The fourth proportional to 18,711,279.40, 28,066,919.10 and 16,397,141.80 is: 24,595,712.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,711,279.40 : 28,066,919.10 = 16,397,141.80 : x
  2. Step 2: Convert to fraction form
    18,711,279.40/28,066,919.10 = 16,397,141.80/x
  3. Step 3: Cross multiply
    18,711,279.40x = 28,066,919.10 × 16,397,141.80
  4. Step 4: Simplify right side
    18,711,279.40x = 460,217,252,371,828.44
  5. Step 5: Solve for x
    x = 460,217,252,371,828.44/18,711,279.40
  6. Step 6: Final answer
    x = 24,595,712.70

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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.