Home / 13,148,117.90-18,146,205.13-7,566,249.75

Finding the Fourth Proportional to 13,148,117.90, 18,146,205.13 and 7,566,249.75

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Solution

The fourth proportional to 13,148,117.90, 18,146,205.13 and 7,566,249.75 is: 10,442,461.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,148,117.90 : 18,146,205.13 = 7,566,249.75 : x
  2. Step 2: Convert to fraction form
    13,148,117.90/18,146,205.13 = 7,566,249.75/x
  3. Step 3: Cross multiply
    13,148,117.90x = 18,146,205.13 × 7,566,249.75
  4. Step 4: Simplify right side
    13,148,117.90x = 137,298,720,028,311.20
  5. Step 5: Solve for x
    x = 137,298,720,028,311.20/13,148,117.90
  6. Step 6: Final answer
    x = 10,442,461.88

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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.