Home / 187,174,928.15-280,787,942.15-77,974,561.68

Finding the Fourth Proportional to 187,174,928.15, 280,787,942.15 and 77,974,561.68

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Solution

The fourth proportional to 187,174,928.15, 280,787,942.15 and 77,974,561.68 is: 116,972,486.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,174,928.15 : 280,787,942.15 = 77,974,561.68 : x
  2. Step 2: Convert to fraction form
    187,174,928.15/280,787,942.15 = 77,974,561.68/x
  3. Step 3: Cross multiply
    187,174,928.15x = 280,787,942.15 × 77,974,561.68
  4. Step 4: Simplify right side
    187,174,928.15x = 21,894,316,714,175,448
  5. Step 5: Solve for x
    x = 21,894,316,714,175,448/187,174,928.15
  6. Step 6: Final answer
    x = 116,972,486.28

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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.