Home / 28,679,128.80-39,577,203.44-15,626,387.71

Finding the Fourth Proportional to 28,679,128.80, 39,577,203.44 and 15,626,387.71

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Solution

The fourth proportional to 28,679,128.80, 39,577,203.44 and 15,626,387.71 is: 21,564,418.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,679,128.80 : 39,577,203.44 = 15,626,387.71 : x
  2. Step 2: Convert to fraction form
    28,679,128.80/39,577,203.44 = 15,626,387.71/x
  3. Step 3: Cross multiply
    28,679,128.80x = 39,577,203.44 × 15,626,387.71
  4. Step 4: Simplify right side
    28,679,128.80x = 618,448,725,451,796.88
  5. Step 5: Solve for x
    x = 618,448,725,451,796.88/28,679,128.80
  6. Step 6: Final answer
    x = 21,564,418.15

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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.