Home / 140,843,759.20-211,265,638.80-72,819,311.20

Finding the Fourth Proportional to 140,843,759.20, 211,265,638.80 and 72,819,311.20

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Solution

The fourth proportional to 140,843,759.20, 211,265,638.80 and 72,819,311.20 is: 109,228,966.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,843,759.20 : 211,265,638.80 = 72,819,311.20 : x
  2. Step 2: Convert to fraction form
    140,843,759.20/211,265,638.80 = 72,819,311.20/x
  3. Step 3: Cross multiply
    140,843,759.20x = 211,265,638.80 × 72,819,311.20
  4. Step 4: Simplify right side
    140,843,759.20x = 15,384,218,297,643,996
  5. Step 5: Solve for x
    x = 15,384,218,297,643,996/140,843,759.20
  6. Step 6: Final answer
    x = 109,228,966.80

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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.