Home / 12,225,851.85-18,338,777.78-6,557,147.85

Finding the Fourth Proportional to 12,225,851.85, 18,338,777.78 and 6,557,147.85

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Solution

The fourth proportional to 12,225,851.85, 18,338,777.78 and 6,557,147.85 is: 9,835,721.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,225,851.85 : 18,338,777.78 = 6,557,147.85 : x
  2. Step 2: Convert to fraction form
    12,225,851.85/18,338,777.78 = 6,557,147.85/x
  3. Step 3: Cross multiply
    12,225,851.85x = 18,338,777.78 × 6,557,147.85
  4. Step 4: Simplify right side
    12,225,851.85x = 120,250,077,258,969.02
  5. Step 5: Solve for x
    x = 120,250,077,258,969.02/12,225,851.85
  6. Step 6: Final answer
    x = 9,835,721.78

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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.