Home / 20,382,677.60-28,124,883.60-11,679,175.76

Finding the Fourth Proportional to 20,382,677.60, 28,124,883.60 and 11,679,175.76

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Solution

The fourth proportional to 20,382,677.60, 28,124,883.60 and 11,679,175.76 is: 16,115,422.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,382,677.60 : 28,124,883.60 = 11,679,175.76 : x
  2. Step 2: Convert to fraction form
    20,382,677.60/28,124,883.60 = 11,679,175.76/x
  3. Step 3: Cross multiply
    20,382,677.60x = 28,124,883.60 × 11,679,175.76
  4. Step 4: Simplify right side
    20,382,677.60x = 328,475,458,793,941.56
  5. Step 5: Solve for x
    x = 328,475,458,793,941.56/20,382,677.60
  6. Step 6: Final answer
    x = 16,115,422.38

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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.