Home / 287,381,419.56-431,344,660.32-177,875,345.52

Finding the Fourth Proportional to 287,381,419.56, 431,344,660.32 and 177,875,345.52

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Solution

The fourth proportional to 287,381,419.56, 431,344,660.32 and 177,875,345.52 is: 266,981,701.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,381,419.56 : 431,344,660.32 = 177,875,345.52 : x
  2. Step 2: Convert to fraction form
    287,381,419.56/431,344,660.32 = 177,875,345.52/x
  3. Step 3: Cross multiply
    287,381,419.56x = 431,344,660.32 × 177,875,345.52
  4. Step 4: Simplify right side
    287,381,419.56x = 76,725,580,492,627,040
  5. Step 5: Solve for x
    x = 76,725,580,492,627,040/287,381,419.56
  6. Step 6: Final answer
    x = 266,981,701.91

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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.