Home / 1,314,147,517.20-1,971,221,275.80-797,161,712.40

Finding the Fourth Proportional to 1,314,147,517.20, 1,971,221,275.80 and 797,161,712.40

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Solution

The fourth proportional to 1,314,147,517.20, 1,971,221,275.80 and 797,161,712.40 is: 1,195,742,568.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,314,147,517.20 : 1,971,221,275.80 = 797,161,712.40 : x
  2. Step 2: Convert to fraction form
    1,314,147,517.20/1,971,221,275.80 = 797,161,712.40/x
  3. Step 3: Cross multiply
    1,314,147,517.20x = 1,971,221,275.80 × 797,161,712.40
  4. Step 4: Simplify right side
    1,314,147,517.20x = 1,571,382,127,736,040,704
  5. Step 5: Solve for x
    x = 1,571,382,127,736,040,704/1,314,147,517.20
  6. Step 6: Final answer
    x = 1,195,742,568.60

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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.