Home / 288,584,811.97-398,236,371.09-156,422,970.85

Finding the Fourth Proportional to 288,584,811.97, 398,236,371.09 and 156,422,970.85

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Solution

The fourth proportional to 288,584,811.97, 398,236,371.09 and 156,422,970.85 is: 215,857,916.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,584,811.97 : 398,236,371.09 = 156,422,970.85 : x
  2. Step 2: Convert to fraction form
    288,584,811.97/398,236,371.09 = 156,422,970.85/x
  3. Step 3: Cross multiply
    288,584,811.97x = 398,236,371.09 × 156,422,970.85
  4. Step 4: Simplify right side
    288,584,811.97x = 62,293,316,264,429,664
  5. Step 5: Solve for x
    x = 62,293,316,264,429,664/288,584,811.97
  6. Step 6: Final answer
    x = 215,857,916.57

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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.