Home / 40,479,987.20-60,719,933.61-13,186,235.88

Finding the Fourth Proportional to 40,479,987.20, 60,719,933.61 and 13,186,235.88

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Solution

The fourth proportional to 40,479,987.20, 60,719,933.61 and 13,186,235.88 is: 19,779,338.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,479,987.20 : 60,719,933.61 = 13,186,235.88 : x
  2. Step 2: Convert to fraction form
    40,479,987.20/60,719,933.61 = 13,186,235.88/x
  3. Step 3: Cross multiply
    40,479,987.20x = 60,719,933.61 × 13,186,235.88
  4. Step 4: Simplify right side
    40,479,987.20x = 800,667,367,199,400
  5. Step 5: Solve for x
    x = 800,667,367,199,400/40,479,987.20
  6. Step 6: Final answer
    x = 19,779,338.45

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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.