Home / 20,771,287.14-28,665,473.64-12,513,948.80

Finding the Fourth Proportional to 20,771,287.14, 28,665,473.64 and 12,513,948.80

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Solution

The fourth proportional to 20,771,287.14, 28,665,473.64 and 12,513,948.80 is: 17,269,910.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,771,287.14 : 28,665,473.64 = 12,513,948.80 : x
  2. Step 2: Convert to fraction form
    20,771,287.14/28,665,473.64 = 12,513,948.80/x
  3. Step 3: Cross multiply
    20,771,287.14x = 28,665,473.64 × 12,513,948.80
  4. Step 4: Simplify right side
    20,771,287.14x = 358,718,269,268,454.94
  5. Step 5: Solve for x
    x = 358,718,269,268,454.94/20,771,287.14
  6. Step 6: Final answer
    x = 17,269,910.47

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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.