Home / 28,138,857.30-42,176,793.15-11,962,055.70

Finding the Fourth Proportional to 28,138,857.30, 42,176,793.15 and 11,962,055.70

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Solution

The fourth proportional to 28,138,857.30, 42,176,793.15 and 11,962,055.70 is: 17,929,695.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,138,857.30 : 42,176,793.15 = 11,962,055.70 : x
  2. Step 2: Convert to fraction form
    28,138,857.30/42,176,793.15 = 11,962,055.70/x
  3. Step 3: Cross multiply
    28,138,857.30x = 42,176,793.15 × 11,962,055.70
  4. Step 4: Simplify right side
    28,138,857.30x = 504,521,148,907,678.38
  5. Step 5: Solve for x
    x = 504,521,148,907,678.38/28,138,857.30
  6. Step 6: Final answer
    x = 17,929,695.71

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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.