Home / 149,400,068.64-206,172,095.12-80,722,436.64

Finding the Fourth Proportional to 149,400,068.64, 206,172,095.12 and 80,722,436.64

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Solution

The fourth proportional to 149,400,068.64, 206,172,095.12 and 80,722,436.64 is: 111,396,962.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,400,068.64 : 206,172,095.12 = 80,722,436.64 : x
  2. Step 2: Convert to fraction form
    149,400,068.64/206,172,095.12 = 80,722,436.64/x
  3. Step 3: Cross multiply
    149,400,068.64x = 206,172,095.12 × 80,722,436.64
  4. Step 4: Simplify right side
    149,400,068.64x = 16,642,713,885,260,254
  5. Step 5: Solve for x
    x = 16,642,713,885,260,254/149,400,068.64
  6. Step 6: Final answer
    x = 111,396,962.78

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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.