Home / 20,394,812.24-28,138,490.12-11,572,802.64

Finding the Fourth Proportional to 20,394,812.24, 28,138,490.12 and 11,572,802.64

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Solution

The fourth proportional to 20,394,812.24, 28,138,490.12 and 11,572,802.64 is: 15,966,863.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,394,812.24 : 28,138,490.12 = 11,572,802.64 : x
  2. Step 2: Convert to fraction form
    20,394,812.24/28,138,490.12 = 11,572,802.64/x
  3. Step 3: Cross multiply
    20,394,812.24x = 28,138,490.12 × 11,572,802.64
  4. Step 4: Simplify right side
    20,394,812.24x = 325,641,192,746,349.94
  5. Step 5: Solve for x
    x = 325,641,192,746,349.94/20,394,812.24
  6. Step 6: Final answer
    x = 15,966,863.97

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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.