Home / 15,326,581.28-21,152,101.20-8,801,065.76

Finding the Fourth Proportional to 15,326,581.28, 21,152,101.20 and 8,801,065.76

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Solution

The fourth proportional to 15,326,581.28, 21,152,101.20 and 8,801,065.76 is: 12,146,285.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,326,581.28 : 21,152,101.20 = 8,801,065.76 : x
  2. Step 2: Convert to fraction form
    15,326,581.28/21,152,101.20 = 8,801,065.76/x
  3. Step 3: Cross multiply
    15,326,581.28x = 21,152,101.20 × 8,801,065.76
  4. Step 4: Simplify right side
    15,326,581.28x = 186,161,033,623,374.91
  5. Step 5: Solve for x
    x = 186,161,033,623,374.91/15,326,581.28
  6. Step 6: Final answer
    x = 12,146,285.61

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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.