Home / 208,182,719.36-287,293,853.76-115,364,777.60

Finding the Fourth Proportional to 208,182,719.36, 287,293,853.76 and 115,364,777.60

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Solution

The fourth proportional to 208,182,719.36, 287,293,853.76 and 115,364,777.60 is: 159,204,335.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,182,719.36 : 287,293,853.76 = 115,364,777.60 : x
  2. Step 2: Convert to fraction form
    208,182,719.36/287,293,853.76 = 115,364,777.60/x
  3. Step 3: Cross multiply
    208,182,719.36x = 287,293,853.76 × 115,364,777.60
  4. Step 4: Simplify right side
    208,182,719.36x = 33,143,591,544,869,320
  5. Step 5: Solve for x
    x = 33,143,591,544,869,320/208,182,719.36
  6. Step 6: Final answer
    x = 159,204,335.72

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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.