Home / 154,464,399.90-231,696,599.85-81,653,046.30

Finding the Fourth Proportional to 154,464,399.90, 231,696,599.85 and 81,653,046.30

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Solution

The fourth proportional to 154,464,399.90, 231,696,599.85 and 81,653,046.30 is: 122,479,569.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,464,399.90 : 231,696,599.85 = 81,653,046.30 : x
  2. Step 2: Convert to fraction form
    154,464,399.90/231,696,599.85 = 81,653,046.30/x
  3. Step 3: Cross multiply
    154,464,399.90x = 231,696,599.85 × 81,653,046.30
  4. Step 4: Simplify right side
    154,464,399.90x = 18,918,733,195,104,620
  5. Step 5: Solve for x
    x = 18,918,733,195,104,620/154,464,399.90
  6. Step 6: Final answer
    x = 122,479,569.45

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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.