Home / 79,461,152.80-119,191,729.20-40,719,103.90

Finding the Fourth Proportional to 79,461,152.80, 119,191,729.20 and 40,719,103.90

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Solution

The fourth proportional to 79,461,152.80, 119,191,729.20 and 40,719,103.90 is: 61,078,655.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,461,152.80 : 119,191,729.20 = 40,719,103.90 : x
  2. Step 2: Convert to fraction form
    79,461,152.80/119,191,729.20 = 40,719,103.90/x
  3. Step 3: Cross multiply
    79,461,152.80x = 119,191,729.20 × 40,719,103.90
  4. Step 4: Simplify right side
    79,461,152.80x = 4,853,380,405,315,464
  5. Step 5: Solve for x
    x = 4,853,380,405,315,464/79,461,152.80
  6. Step 6: Final answer
    x = 61,078,655.85

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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.