Home / 20,498,812.74-28,287,251.46-11,330,865

Finding the Fourth Proportional to 20,498,812.74, 28,287,251.46 and 11,330,865

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Solution

The fourth proportional to 20,498,812.74, 28,287,251.46 and 11,330,865 is: 15,635,980.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,498,812.74 : 28,287,251.46 = 11,330,865 : x
  2. Step 2: Convert to fraction form
    20,498,812.74/28,287,251.46 = 11,330,865/x
  3. Step 3: Cross multiply
    20,498,812.74x = 28,287,251.46 × 11,330,865
  4. Step 4: Simplify right side
    20,498,812.74x = 320,519,027,514,312.94
  5. Step 5: Solve for x
    x = 320,519,027,514,312.94/20,498,812.74
  6. Step 6: Final answer
    x = 15,635,980.07

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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.