Home / 1,561,555,309.40-2,342,720,646.16-774,978,121.20

Finding the Fourth Proportional to 1,561,555,309.40, 2,342,720,646.16 and 774,978,121.20

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Solution

The fourth proportional to 1,561,555,309.40, 2,342,720,646.16 and 774,978,121.20 is: 1,162,659,583.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,561,555,309.40 : 2,342,720,646.16 = 774,978,121.20 : x
  2. Step 2: Convert to fraction form
    1,561,555,309.40/2,342,720,646.16 = 774,978,121.20/x
  3. Step 3: Cross multiply
    1,561,555,309.40x = 2,342,720,646.16 × 774,978,121.20
  4. Step 4: Simplify right side
    1,561,555,309.40x = 1,815,557,244,857,526,784
  5. Step 5: Solve for x
    x = 1,815,557,244,857,526,784/1,561,555,309.40
  6. Step 6: Final answer
    x = 1,162,659,583.00

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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.