Home / 154,464,400.90-231,696,601.35-81,653,047.30

Finding the Fourth Proportional to 154,464,400.90, 231,696,601.35 and 81,653,047.30

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Solution

The fourth proportional to 154,464,400.90, 231,696,601.35 and 81,653,047.30 is: 122,479,570.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,464,400.90 : 231,696,601.35 = 81,653,047.30 : x
  2. Step 2: Convert to fraction form
    154,464,400.90/231,696,601.35 = 81,653,047.30/x
  3. Step 3: Cross multiply
    154,464,400.90x = 231,696,601.35 × 81,653,047.30
  4. Step 4: Simplify right side
    154,464,400.90x = 18,918,733,549,280,792
  5. Step 5: Solve for x
    x = 18,918,733,549,280,792/154,464,400.90
  6. Step 6: Final answer
    x = 122,479,570.95

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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.