Home / 681,984,010.40-1,022,976,015.60-625,548,912.80

Finding the Fourth Proportional to 681,984,010.40, 1,022,976,015.60 and 625,548,912.80

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Solution

The fourth proportional to 681,984,010.40, 1,022,976,015.60 and 625,548,912.80 is: 938,323,369.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,984,010.40 : 1,022,976,015.60 = 625,548,912.80 : x
  2. Step 2: Convert to fraction form
    681,984,010.40/1,022,976,015.60 = 625,548,912.80/x
  3. Step 3: Cross multiply
    681,984,010.40x = 1,022,976,015.60 × 625,548,912.80
  4. Step 4: Simplify right side
    681,984,010.40x = 639,921,534,379,055,744
  5. Step 5: Solve for x
    x = 639,921,534,379,055,744/681,984,010.40
  6. Step 6: Final answer
    x = 938,323,369.20

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1.5x scale

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.