Home / 80,640,147.40-120,960,221.10-26,787,459.40

Finding the Fourth Proportional to 80,640,147.40, 120,960,221.10 and 26,787,459.40

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Solution

The fourth proportional to 80,640,147.40, 120,960,221.10 and 26,787,459.40 is: 40,181,189.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,640,147.40 : 120,960,221.10 = 26,787,459.40 : x
  2. Step 2: Convert to fraction form
    80,640,147.40/120,960,221.10 = 26,787,459.40/x
  3. Step 3: Cross multiply
    80,640,147.40x = 120,960,221.10 × 26,787,459.40
  4. Step 4: Simplify right side
    80,640,147.40x = 3,240,217,011,731,273
  5. Step 5: Solve for x
    x = 3,240,217,011,731,273/80,640,147.40
  6. Step 6: Final answer
    x = 40,181,189.10

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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.