Home / 646,812,010.80-970,218,016.20-258,442,801.20

Finding the Fourth Proportional to 646,812,010.80, 970,218,016.20 and 258,442,801.20

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Solution

The fourth proportional to 646,812,010.80, 970,218,016.20 and 258,442,801.20 is: 387,664,201.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,812,010.80 : 970,218,016.20 = 258,442,801.20 : x
  2. Step 2: Convert to fraction form
    646,812,010.80/970,218,016.20 = 258,442,801.20/x
  3. Step 3: Cross multiply
    646,812,010.80x = 970,218,016.20 × 258,442,801.20
  4. Step 4: Simplify right side
    646,812,010.80x = 250,745,861,881,434,976
  5. Step 5: Solve for x
    x = 250,745,861,881,434,976/646,812,010.80
  6. Step 6: Final answer
    x = 387,664,201.80

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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.