Home / 20,740,839.26-28,622,360.45-11,448,411.92

Finding the Fourth Proportional to 20,740,839.26, 28,622,360.45 and 11,448,411.92

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Solution

The fourth proportional to 20,740,839.26, 28,622,360.45 and 11,448,411.92 is: 15,798,809.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,740,839.26 : 28,622,360.45 = 11,448,411.92 : x
  2. Step 2: Convert to fraction form
    20,740,839.26/28,622,360.45 = 11,448,411.92/x
  3. Step 3: Cross multiply
    20,740,839.26x = 28,622,360.45 × 11,448,411.92
  4. Step 4: Simplify right side
    20,740,839.26x = 327,680,572,514,966.69
  5. Step 5: Solve for x
    x = 327,680,572,514,966.69/20,740,839.26
  6. Step 6: Final answer
    x = 15,798,809.70

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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.