Home / 1,247,802,334.97-1,722,021,030.43-690,885,431.24

Finding the Fourth Proportional to 1,247,802,334.97, 1,722,021,030.43 and 690,885,431.24

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Solution

The fourth proportional to 1,247,802,334.97, 1,722,021,030.43 and 690,885,431.24 is: 953,451,687.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,247,802,334.97 : 1,722,021,030.43 = 690,885,431.24 : x
  2. Step 2: Convert to fraction form
    1,247,802,334.97/1,722,021,030.43 = 690,885,431.24/x
  3. Step 3: Cross multiply
    1,247,802,334.97x = 1,722,021,030.43 × 690,885,431.24
  4. Step 4: Simplify right side
    1,247,802,334.97x = 1,189,719,242,202,642,432
  5. Step 5: Solve for x
    x = 1,189,719,242,202,642,432/1,247,802,334.97
  6. Step 6: Final answer
    x = 953,451,687.71

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Double scale
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1.5x scale

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.