Home / 1,247,505,847.83-1,721,571,674.90-690,598,195.11

Finding the Fourth Proportional to 1,247,505,847.83, 1,721,571,674.90 and 690,598,195.11

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Solution

The fourth proportional to 1,247,505,847.83, 1,721,571,674.90 and 690,598,195.11 is: 953,033,040.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,247,505,847.83 : 1,721,571,674.90 = 690,598,195.11 : x
  2. Step 2: Convert to fraction form
    1,247,505,847.83/1,721,571,674.90 = 690,598,195.11/x
  3. Step 3: Cross multiply
    1,247,505,847.83x = 1,721,571,674.90 × 690,598,195.11
  4. Step 4: Simplify right side
    1,247,505,847.83x = 1,188,914,291,434,986,752
  5. Step 5: Solve for x
    x = 1,188,914,291,434,986,752/1,247,505,847.83
  6. Step 6: Final answer
    x = 953,033,040.69

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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.