Home / 18,406,742.40-27,609,854.40-8,309,347.20

Finding the Fourth Proportional to 18,406,742.40, 27,609,854.40 and 8,309,347.20

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Solution

The fourth proportional to 18,406,742.40, 27,609,854.40 and 8,309,347.20 is: 12,463,903.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,406,742.40 : 27,609,854.40 = 8,309,347.20 : x
  2. Step 2: Convert to fraction form
    18,406,742.40/27,609,854.40 = 8,309,347.20/x
  3. Step 3: Cross multiply
    18,406,742.40x = 27,609,854.40 × 8,309,347.20
  4. Step 4: Simplify right side
    18,406,742.40x = 229,419,866,351,047.69
  5. Step 5: Solve for x
    x = 229,419,866,351,047.69/18,406,742.40
  6. Step 6: Final answer
    x = 12,463,903.79

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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.