Home / 254,387,747.40-381,581,621.10-90,810,207.60

Finding the Fourth Proportional to 254,387,747.40, 381,581,621.10 and 90,810,207.60

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Solution

The fourth proportional to 254,387,747.40, 381,581,621.10 and 90,810,207.60 is: 136,215,311.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,387,747.40 : 381,581,621.10 = 90,810,207.60 : x
  2. Step 2: Convert to fraction form
    254,387,747.40/381,581,621.10 = 90,810,207.60/x
  3. Step 3: Cross multiply
    254,387,747.40x = 381,581,621.10 × 90,810,207.60
  4. Step 4: Simplify right side
    254,387,747.40x = 34,651,506,228,435,540
  5. Step 5: Solve for x
    x = 34,651,506,228,435,540/254,387,747.40
  6. Step 6: Final answer
    x = 136,215,311.40

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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.