Home / 287,381,505.06-431,344,788.57-177,875,431.02

Finding the Fourth Proportional to 287,381,505.06, 431,344,788.57 and 177,875,431.02

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Solution

The fourth proportional to 287,381,505.06, 431,344,788.57 and 177,875,431.02 is: 266,981,830.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,381,505.06 : 431,344,788.57 = 177,875,431.02 : x
  2. Step 2: Convert to fraction form
    287,381,505.06/431,344,788.57 = 177,875,431.02/x
  3. Step 3: Cross multiply
    287,381,505.06x = 431,344,788.57 × 177,875,431.02
  4. Step 4: Simplify right side
    287,381,505.06x = 76,725,640,185,119,520
  5. Step 5: Solve for x
    x = 76,725,640,185,119,520/287,381,505.06
  6. Step 6: Final answer
    x = 266,981,830.20

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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.