Home / 154,120,522.38-212,717,219.31-91,431,416.67

Finding the Fourth Proportional to 154,120,522.38, 212,717,219.31 and 91,431,416.67

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Solution

The fourth proportional to 154,120,522.38, 212,717,219.31 and 91,431,416.67 is: 126,193,685.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,120,522.38 : 212,717,219.31 = 91,431,416.67 : x
  2. Step 2: Convert to fraction form
    154,120,522.38/212,717,219.31 = 91,431,416.67/x
  3. Step 3: Cross multiply
    154,120,522.38x = 212,717,219.31 × 91,431,416.67
  4. Step 4: Simplify right side
    154,120,522.38x = 19,449,036,711,616,380
  5. Step 5: Solve for x
    x = 19,449,036,711,616,380/154,120,522.38
  6. Step 6: Final answer
    x = 126,193,685.38

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.