Home / 15,159,132.66-20,920,022.55-9,278,649.84

Finding the Fourth Proportional to 15,159,132.66, 20,920,022.55 and 9,278,649.84

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Solution

The fourth proportional to 15,159,132.66, 20,920,022.55 and 9,278,649.84 is: 12,804,793.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,159,132.66 : 20,920,022.55 = 9,278,649.84 : x
  2. Step 2: Convert to fraction form
    15,159,132.66/20,920,022.55 = 9,278,649.84/x
  3. Step 3: Cross multiply
    15,159,132.66x = 20,920,022.55 × 9,278,649.84
  4. Step 4: Simplify right side
    15,159,132.66x = 194,109,563,886,353.91
  5. Step 5: Solve for x
    x = 194,109,563,886,353.91/15,159,132.66
  6. Step 6: Final answer
    x = 12,804,793.54

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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.