Home / 187,029,015.30-280,543,522.95-77,817,889.80

Finding the Fourth Proportional to 187,029,015.30, 280,543,522.95 and 77,817,889.80

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Solution

The fourth proportional to 187,029,015.30, 280,543,522.95 and 77,817,889.80 is: 116,726,834.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,029,015.30 : 280,543,522.95 = 77,817,889.80 : x
  2. Step 2: Convert to fraction form
    187,029,015.30/280,543,522.95 = 77,817,889.80/x
  3. Step 3: Cross multiply
    187,029,015.30x = 280,543,522.95 × 77,817,889.80
  4. Step 4: Simplify right side
    187,029,015.30x = 21,831,304,953,026,868
  5. Step 5: Solve for x
    x = 21,831,304,953,026,868/187,029,015.30
  6. Step 6: Final answer
    x = 116,726,834.70

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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.