Home / 208,182,711.36-287,293,842.72-115,364,769.60

Finding the Fourth Proportional to 208,182,711.36, 287,293,842.72 and 115,364,769.60

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Solution

The fourth proportional to 208,182,711.36, 287,293,842.72 and 115,364,769.60 is: 159,204,324.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,182,711.36 : 287,293,842.72 = 115,364,769.60 : x
  2. Step 2: Convert to fraction form
    208,182,711.36/287,293,842.72 = 115,364,769.60/x
  3. Step 3: Cross multiply
    208,182,711.36x = 287,293,842.72 × 115,364,769.60
  4. Step 4: Simplify right side
    208,182,711.36x = 33,143,587,972,891,440
  5. Step 5: Solve for x
    x = 33,143,587,972,891,440/208,182,711.36
  6. Step 6: Final answer
    x = 159,204,324.68

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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.