Home / 215,131,036.20-322,696,554.30-137,646,938.40

Finding the Fourth Proportional to 215,131,036.20, 322,696,554.30 and 137,646,938.40

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Solution

The fourth proportional to 215,131,036.20, 322,696,554.30 and 137,646,938.40 is: 206,470,407.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,131,036.20 : 322,696,554.30 = 137,646,938.40 : x
  2. Step 2: Convert to fraction form
    215,131,036.20/322,696,554.30 = 137,646,938.40/x
  3. Step 3: Cross multiply
    215,131,036.20x = 322,696,554.30 × 137,646,938.40
  4. Step 4: Simplify right side
    215,131,036.20x = 44,418,192,731,624,360
  5. Step 5: Solve for x
    x = 44,418,192,731,624,360/215,131,036.20
  6. Step 6: Final answer
    x = 206,470,407.60

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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.