Home / 12,255,557.90-18,383,336.85-10,365,989.90

Finding the Fourth Proportional to 12,255,557.90, 18,383,336.85 and 10,365,989.90

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Solution

The fourth proportional to 12,255,557.90, 18,383,336.85 and 10,365,989.90 is: 15,548,984.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,255,557.90 : 18,383,336.85 = 10,365,989.90 : x
  2. Step 2: Convert to fraction form
    12,255,557.90/18,383,336.85 = 10,365,989.90/x
  3. Step 3: Cross multiply
    12,255,557.90x = 18,383,336.85 × 10,365,989.90
  4. Step 4: Simplify right side
    12,255,557.90x = 190,561,484,115,397.84
  5. Step 5: Solve for x
    x = 190,561,484,115,397.84/12,255,557.90
  6. Step 6: Final answer
    x = 15,548,984.85

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.