Home / 28,386,930.44-42,579,780.84-7,916,103.78

Finding the Fourth Proportional to 28,386,930.44, 42,579,780.84 and 7,916,103.78

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Solution

The fourth proportional to 28,386,930.44, 42,579,780.84 and 7,916,103.78 is: 11,873,984.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,386,930.44 : 42,579,780.84 = 7,916,103.78 : x
  2. Step 2: Convert to fraction form
    28,386,930.44/42,579,780.84 = 7,916,103.78/x
  3. Step 3: Cross multiply
    28,386,930.44x = 42,579,780.84 × 7,916,103.78
  4. Step 4: Simplify right side
    28,386,930.44x = 337,065,964,059,095.62
  5. Step 5: Solve for x
    x = 337,065,964,059,095.62/28,386,930.44
  6. Step 6: Final answer
    x = 11,873,984.22

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.