Home / 12,413,422.80-18,620,134.20-7,370,427.60

Finding the Fourth Proportional to 12,413,422.80, 18,620,134.20 and 7,370,427.60

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Solution

The fourth proportional to 12,413,422.80, 18,620,134.20 and 7,370,427.60 is: 11,055,641.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,413,422.80 : 18,620,134.20 = 7,370,427.60 : x
  2. Step 2: Convert to fraction form
    12,413,422.80/18,620,134.20 = 7,370,427.60/x
  3. Step 3: Cross multiply
    12,413,422.80x = 18,620,134.20 × 7,370,427.60
  4. Step 4: Simplify right side
    12,413,422.80x = 137,238,351,023,383.91
  5. Step 5: Solve for x
    x = 137,238,351,023,383.91/12,413,422.80
  6. Step 6: Final answer
    x = 11,055,641.40

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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.