Home / 1,247,505,832.46-1,721,571,653.68-690,598,179.74

Finding the Fourth Proportional to 1,247,505,832.46, 1,721,571,653.68 and 690,598,179.74

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Solution

The fourth proportional to 1,247,505,832.46, 1,721,571,653.68 and 690,598,179.74 is: 953,033,019.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,247,505,832.46 : 1,721,571,653.68 = 690,598,179.74 : x
  2. Step 2: Convert to fraction form
    1,247,505,832.46/1,721,571,653.68 = 690,598,179.74/x
  3. Step 3: Cross multiply
    1,247,505,832.46x = 1,721,571,653.68 × 690,598,179.74
  4. Step 4: Simplify right side
    1,247,505,832.46x = 1,188,914,250,314,781,952
  5. Step 5: Solve for x
    x = 1,188,914,250,314,781,952/1,247,505,832.46
  6. Step 6: Final answer
    x = 953,033,019.47

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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.