Home / 28,502,200.80-39,331,983.36-15,449,179.47

Finding the Fourth Proportional to 28,502,200.80, 39,331,983.36 and 15,449,179.47

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Solution

The fourth proportional to 28,502,200.80, 39,331,983.36 and 15,449,179.47 is: 21,319,296.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,502,200.80 : 39,331,983.36 = 15,449,179.47 : x
  2. Step 2: Convert to fraction form
    28,502,200.80/39,331,983.36 = 15,449,179.47/x
  3. Step 3: Cross multiply
    28,502,200.80x = 39,331,983.36 × 15,449,179.47
  4. Step 4: Simplify right side
    28,502,200.80x = 607,646,869,839,693.62
  5. Step 5: Solve for x
    x = 607,646,869,839,693.62/28,502,200.80
  6. Step 6: Final answer
    x = 21,319,296.50

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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.