Home / 187,029,145.80-280,543,718.70-77,818,020.30

Finding the Fourth Proportional to 187,029,145.80, 280,543,718.70 and 77,818,020.30

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Solution

The fourth proportional to 187,029,145.80, 280,543,718.70 and 77,818,020.30 is: 116,727,030.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,029,145.80 : 280,543,718.70 = 77,818,020.30 : x
  2. Step 2: Convert to fraction form
    187,029,145.80/280,543,718.70 = 77,818,020.30/x
  3. Step 3: Cross multiply
    187,029,145.80x = 280,543,718.70 × 77,818,020.30
  4. Step 4: Simplify right side
    187,029,145.80x = 21,831,356,796,834,088
  5. Step 5: Solve for x
    x = 21,831,356,796,834,088/187,029,145.80
  6. Step 6: Final answer
    x = 116,727,030.45

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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.