Home / 154,647,638.88-231,818,233.05-72,619,679.01

Finding the Fourth Proportional to 154,647,638.88, 231,818,233.05 and 72,619,679.01

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Solution

The fourth proportional to 154,647,638.88, 231,818,233.05 and 72,619,679.01 is: 108,857,566.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,647,638.88 : 231,818,233.05 = 72,619,679.01 : x
  2. Step 2: Convert to fraction form
    154,647,638.88/231,818,233.05 = 72,619,679.01/x
  3. Step 3: Cross multiply
    154,647,638.88x = 231,818,233.05 × 72,619,679.01
  4. Step 4: Simplify right side
    154,647,638.88x = 16,834,565,672,756,376
  5. Step 5: Solve for x
    x = 16,834,565,672,756,376/154,647,638.88
  6. Step 6: Final answer
    x = 108,857,566.75

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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.