Home / 287,233,308.40-430,231,112.61-194,608,850.17

Finding the Fourth Proportional to 287,233,308.40, 430,231,112.61 and 194,608,850.17

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Solution

The fourth proportional to 287,233,308.40, 430,231,112.61 and 194,608,850.17 is: 291,493,986.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,233,308.40 : 430,231,112.61 = 194,608,850.17 : x
  2. Step 2: Convert to fraction form
    287,233,308.40/430,231,112.61 = 194,608,850.17/x
  3. Step 3: Cross multiply
    287,233,308.40x = 430,231,112.61 × 194,608,850.17
  4. Step 4: Simplify right side
    287,233,308.40x = 83,726,782,132,391,888
  5. Step 5: Solve for x
    x = 83,726,782,132,391,888/287,233,308.40
  6. Step 6: Final answer
    x = 291,493,986.54

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.