Home / 20,751,454.08-28,637,489.52-13,016,822.40

Finding the Fourth Proportional to 20,751,454.08, 28,637,489.52 and 13,016,822.40

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Solution

The fourth proportional to 20,751,454.08, 28,637,489.52 and 13,016,822.40 is: 17,963,517.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,751,454.08 : 28,637,489.52 = 13,016,822.40 : x
  2. Step 2: Convert to fraction form
    20,751,454.08/28,637,489.52 = 13,016,822.40/x
  3. Step 3: Cross multiply
    20,751,454.08x = 28,637,489.52 × 13,016,822.40
  4. Step 4: Simplify right side
    20,751,454.08x = 372,769,115,063,701.25
  5. Step 5: Solve for x
    x = 372,769,115,063,701.25/20,751,454.08
  6. Step 6: Final answer
    x = 17,963,517.82

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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.