Home / 12,292,280.80-18,438,421.20-9,900,796.30

Finding the Fourth Proportional to 12,292,280.80, 18,438,421.20 and 9,900,796.30

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Solution

The fourth proportional to 12,292,280.80, 18,438,421.20 and 9,900,796.30 is: 14,851,194.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,292,280.80 : 18,438,421.20 = 9,900,796.30 : x
  2. Step 2: Convert to fraction form
    12,292,280.80/18,438,421.20 = 9,900,796.30/x
  3. Step 3: Cross multiply
    12,292,280.80x = 18,438,421.20 × 9,900,796.30
  4. Step 4: Simplify right side
    12,292,280.80x = 182,555,052,394,801.56
  5. Step 5: Solve for x
    x = 182,555,052,394,801.56/12,292,280.80
  6. Step 6: Final answer
    x = 14,851,194.45

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Double scale
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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.