Home / 208,112,613.28-287,172,235.30-115,269,870.58

Finding the Fourth Proportional to 208,112,613.28, 287,172,235.30 and 115,269,870.58

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Solution

The fourth proportional to 208,112,613.28, 287,172,235.30 and 115,269,870.58 is: 159,059,587.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,112,613.28 : 287,172,235.30 = 115,269,870.58 : x
  2. Step 2: Convert to fraction form
    208,112,613.28/287,172,235.30 = 115,269,870.58/x
  3. Step 3: Cross multiply
    208,112,613.28x = 287,172,235.30 × 115,269,870.58
  4. Step 4: Simplify right side
    208,112,613.28x = 33,102,306,397,200,308
  5. Step 5: Solve for x
    x = 33,102,306,397,200,308/208,112,613.28
  6. Step 6: Final answer
    x = 159,059,587.38

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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.