Home / 288,584,777.42-398,236,323.60-156,422,936.39

Finding the Fourth Proportional to 288,584,777.42, 398,236,323.60 and 156,422,936.39

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Solution

The fourth proportional to 288,584,777.42, 398,236,323.60 and 156,422,936.39 is: 215,857,869.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,584,777.42 : 398,236,323.60 = 156,422,936.39 : x
  2. Step 2: Convert to fraction form
    288,584,777.42/398,236,323.60 = 156,422,936.39/x
  3. Step 3: Cross multiply
    288,584,777.42x = 398,236,323.60 × 156,422,936.39
  4. Step 4: Simplify right side
    288,584,777.42x = 62,293,295,112,679,072
  5. Step 5: Solve for x
    x = 62,293,295,112,679,072/288,584,777.42
  6. Step 6: Final answer
    x = 215,857,869.12

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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.