Home / 15,847,431.04-21,820,487.52-12,376,789.12

Finding the Fourth Proportional to 15,847,431.04, 21,820,487.52 and 12,376,789.12

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Solution

The fourth proportional to 15,847,431.04, 21,820,487.52 and 12,376,789.12 is: 17,041,725.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,847,431.04 : 21,820,487.52 = 12,376,789.12 : x
  2. Step 2: Convert to fraction form
    15,847,431.04/21,820,487.52 = 12,376,789.12/x
  3. Step 3: Cross multiply
    15,847,431.04x = 21,820,487.52 × 12,376,789.12
  4. Step 4: Simplify right side
    15,847,431.04x = 270,067,572,530,631.75
  5. Step 5: Solve for x
    x = 270,067,572,530,631.75/15,847,431.04
  6. Step 6: Final answer
    x = 17,041,725.68

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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.