Home / 282,931,581.29-390,445,600.19-157,481,076.61

Finding the Fourth Proportional to 282,931,581.29, 390,445,600.19 and 157,481,076.61

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Solution

The fourth proportional to 282,931,581.29, 390,445,600.19 and 157,481,076.61 is: 217,323,895.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,931,581.29 : 390,445,600.19 = 157,481,076.61 : x
  2. Step 2: Convert to fraction form
    282,931,581.29/390,445,600.19 = 157,481,076.61/x
  3. Step 3: Cross multiply
    282,931,581.29x = 390,445,600.19 × 157,481,076.61
  4. Step 4: Simplify right side
    282,931,581.29x = 61,487,793,473,726,592
  5. Step 5: Solve for x
    x = 61,487,793,473,726,592/282,931,581.29
  6. Step 6: Final answer
    x = 217,323,895.74

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.