Home / 18,215,118.76-25,137,385.14-9,955,641.64

Finding the Fourth Proportional to 18,215,118.76, 25,137,385.14 and 9,955,641.64

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Solution

The fourth proportional to 18,215,118.76, 25,137,385.14 and 9,955,641.64 is: 13,739,070.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,215,118.76 : 25,137,385.14 = 9,955,641.64 : x
  2. Step 2: Convert to fraction form
    18,215,118.76/25,137,385.14 = 9,955,641.64/x
  3. Step 3: Cross multiply
    18,215,118.76x = 25,137,385.14 × 9,955,641.64
  4. Step 4: Simplify right side
    18,215,118.76x = 250,258,798,220,501.25
  5. Step 5: Solve for x
    x = 250,258,798,220,501.25/18,215,118.76
  6. Step 6: Final answer
    x = 13,739,070.36

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Double scale
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1.5x scale

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.