Home / 15,853,825.92-21,878,322.12-9,327,701.28

Finding the Fourth Proportional to 15,853,825.92, 21,878,322.12 and 9,327,701.28

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Solution

The fourth proportional to 15,853,825.92, 21,878,322.12 and 9,327,701.28 is: 12,872,252.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,853,825.92 : 21,878,322.12 = 9,327,701.28 : x
  2. Step 2: Convert to fraction form
    15,853,825.92/21,878,322.12 = 9,327,701.28/x
  3. Step 3: Cross multiply
    15,853,825.92x = 21,878,322.12 × 9,327,701.28
  4. Step 4: Simplify right side
    15,853,825.92x = 204,074,453,242,976.31
  5. Step 5: Solve for x
    x = 204,074,453,242,976.31/15,853,825.92
  6. Step 6: Final answer
    x = 12,872,252.68

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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.