Home / 106,487,640.80-159,311,185.40-80,654,359.40

Finding the Fourth Proportional to 106,487,640.80, 159,311,185.40 and 80,654,359.40

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Solution

The fourth proportional to 106,487,640.80, 159,311,185.40 and 80,654,359.40 is: 120,663,219.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,487,640.80 : 159,311,185.40 = 80,654,359.40 : x
  2. Step 2: Convert to fraction form
    106,487,640.80/159,311,185.40 = 80,654,359.40/x
  3. Step 3: Cross multiply
    106,487,640.80x = 159,311,185.40 × 80,654,359.40
  4. Step 4: Simplify right side
    106,487,640.80x = 12,849,141,602,491,806
  5. Step 5: Solve for x
    x = 12,849,141,602,491,806/106,487,640.80
  6. Step 6: Final answer
    x = 120,663,219.76

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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.