Home / 40,439,679.40-60,659,519.10-13,145,919.40

Finding the Fourth Proportional to 40,439,679.40, 60,659,519.10 and 13,145,919.40

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Solution

The fourth proportional to 40,439,679.40, 60,659,519.10 and 13,145,919.40 is: 19,718,879.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,439,679.40 : 60,659,519.10 = 13,145,919.40 : x
  2. Step 2: Convert to fraction form
    40,439,679.40/60,659,519.10 = 13,145,919.40/x
  3. Step 3: Cross multiply
    40,439,679.40x = 60,659,519.10 × 13,145,919.40
  4. Step 4: Simplify right side
    40,439,679.40x = 797,425,148,931,360.62
  5. Step 5: Solve for x
    x = 797,425,148,931,360.62/40,439,679.40
  6. Step 6: Final answer
    x = 19,718,879.10

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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.