Home / 1,890,739,517.40-2,836,605,287.70-726,245,998.20

Finding the Fourth Proportional to 1,890,739,517.40, 2,836,605,287.70 and 726,245,998.20

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Solution

The fourth proportional to 1,890,739,517.40, 2,836,605,287.70 and 726,245,998.20 is: 1,089,559,518.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,890,739,517.40 : 2,836,605,287.70 = 726,245,998.20 : x
  2. Step 2: Convert to fraction form
    1,890,739,517.40/2,836,605,287.70 = 726,245,998.20/x
  3. Step 3: Cross multiply
    1,890,739,517.40x = 2,836,605,287.70 × 726,245,998.20
  4. Step 4: Simplify right side
    1,890,739,517.40x = 2,060,073,238,665,084,672
  5. Step 5: Solve for x
    x = 2,060,073,238,665,084,672/1,890,739,517.40
  6. Step 6: Final answer
    x = 1,089,559,518.75

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Double scale
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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.