Home / 28,973,106.24-39,982,755.60-15,920,327.22

Finding the Fourth Proportional to 28,973,106.24, 39,982,755.60 and 15,920,327.22

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Solution

The fourth proportional to 28,973,106.24, 39,982,755.60 and 15,920,327.22 is: 21,969,979.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,973,106.24 : 39,982,755.60 = 15,920,327.22 : x
  2. Step 2: Convert to fraction form
    28,973,106.24/39,982,755.60 = 15,920,327.22/x
  3. Step 3: Cross multiply
    28,973,106.24x = 39,982,755.60 × 15,920,327.22
  4. Step 4: Simplify right side
    28,973,106.24x = 636,538,552,309,287.50
  5. Step 5: Solve for x
    x = 636,538,552,309,287.50/28,973,106.24
  6. Step 6: Final answer
    x = 21,969,979.57

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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.