Home / 18,711,246.60-28,066,869.90-9,132,769.80

Finding the Fourth Proportional to 18,711,246.60, 28,066,869.90 and 9,132,769.80

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Solution

The fourth proportional to 18,711,246.60, 28,066,869.90 and 9,132,769.80 is: 13,699,154.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,711,246.60 : 28,066,869.90 = 9,132,769.80 : x
  2. Step 2: Convert to fraction form
    18,711,246.60/28,066,869.90 = 9,132,769.80/x
  3. Step 3: Cross multiply
    18,711,246.60x = 28,066,869.90 × 9,132,769.80
  4. Step 4: Simplify right side
    18,711,246.60x = 256,328,261,803,249.03
  5. Step 5: Solve for x
    x = 256,328,261,803,249.03/18,711,246.60
  6. Step 6: Final answer
    x = 13,699,154.70

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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.