Home / 20,764,167.69-28,653,684.15-11,942,948.13

Finding the Fourth Proportional to 20,764,167.69, 28,653,684.15 and 11,942,948.13

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Solution

The fourth proportional to 20,764,167.69, 28,653,684.15 and 11,942,948.13 is: 16,480,769.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,764,167.69 : 28,653,684.15 = 11,942,948.13 : x
  2. Step 2: Convert to fraction form
    20,764,167.69/28,653,684.15 = 11,942,948.13/x
  3. Step 3: Cross multiply
    20,764,167.69x = 28,653,684.15 × 11,942,948.13
  4. Step 4: Simplify right side
    20,764,167.69x = 342,209,463,536,853.12
  5. Step 5: Solve for x
    x = 342,209,463,536,853.12/20,764,167.69
  6. Step 6: Final answer
    x = 16,480,769.60

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.