Home / 153,962,608.38-212,466,640.36-83,396,888.25

Finding the Fourth Proportional to 153,962,608.38, 212,466,640.36 and 83,396,888.25

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Solution

The fourth proportional to 153,962,608.38, 212,466,640.36 and 83,396,888.25 is: 115,086,752.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,962,608.38 : 212,466,640.36 = 83,396,888.25 : x
  2. Step 2: Convert to fraction form
    153,962,608.38/212,466,640.36 = 83,396,888.25/x
  3. Step 3: Cross multiply
    153,962,608.38x = 212,466,640.36 × 83,396,888.25
  4. Step 4: Simplify right side
    153,962,608.38x = 17,719,056,662,955,860
  5. Step 5: Solve for x
    x = 17,719,056,662,955,860/153,962,608.38
  6. Step 6: Final answer
    x = 115,086,752.88

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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.