Home / 288,584,812.59-398,236,371.95-156,422,971.47

Finding the Fourth Proportional to 288,584,812.59, 398,236,371.95 and 156,422,971.47

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Solution

The fourth proportional to 288,584,812.59, 398,236,371.95 and 156,422,971.47 is: 215,857,917.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,584,812.59 : 398,236,371.95 = 156,422,971.47 : x
  2. Step 2: Convert to fraction form
    288,584,812.59/398,236,371.95 = 156,422,971.47/x
  3. Step 3: Cross multiply
    288,584,812.59x = 398,236,371.95 × 156,422,971.47
  4. Step 4: Simplify right side
    288,584,812.59x = 62,293,316,649,735,600
  5. Step 5: Solve for x
    x = 62,293,316,649,735,600/288,584,812.59
  6. Step 6: Final answer
    x = 215,857,917.44

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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.