Home / 7,719,811.20-11,577,643.20-3,231,158.40

Finding the Fourth Proportional to 7,719,811.20, 11,577,643.20 and 3,231,158.40

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Solution

The fourth proportional to 7,719,811.20, 11,577,643.20 and 3,231,158.40 is: 4,845,869.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,719,811.20 : 11,577,643.20 = 3,231,158.40 : x
  2. Step 2: Convert to fraction form
    7,719,811.20/11,577,643.20 = 3,231,158.40/x
  3. Step 3: Cross multiply
    7,719,811.20x = 11,577,643.20 × 3,231,158.40
  4. Step 4: Simplify right side
    7,719,811.20x = 37,409,199,077,882.88
  5. Step 5: Solve for x
    x = 37,409,199,077,882.88/7,719,811.20
  6. Step 6: Final answer
    x = 4,845,869.69

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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.