Home / 187,029,144.80-280,543,717.20-77,818,019.30

Finding the Fourth Proportional to 187,029,144.80, 280,543,717.20 and 77,818,019.30

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Solution

The fourth proportional to 187,029,144.80, 280,543,717.20 and 77,818,019.30 is: 116,727,028.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,029,144.80 : 280,543,717.20 = 77,818,019.30 : x
  2. Step 2: Convert to fraction form
    187,029,144.80/280,543,717.20 = 77,818,019.30/x
  3. Step 3: Cross multiply
    187,029,144.80x = 280,543,717.20 × 77,818,019.30
  4. Step 4: Simplify right side
    187,029,144.80x = 21,831,356,399,563,340
  5. Step 5: Solve for x
    x = 21,831,356,399,563,340/187,029,144.80
  6. Step 6: Final answer
    x = 116,727,028.95

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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.