Home / 112,218,117.80-168,243,195.90-61,157,791.40

Finding the Fourth Proportional to 112,218,117.80, 168,243,195.90 and 61,157,791.40

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Solution

The fourth proportional to 112,218,117.80, 168,243,195.90 and 61,157,791.40 is: 91,690,918.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,218,117.80 : 168,243,195.90 = 61,157,791.40 : x
  2. Step 2: Convert to fraction form
    112,218,117.80/168,243,195.90 = 61,157,791.40/x
  3. Step 3: Cross multiply
    112,218,117.80x = 168,243,195.90 × 61,157,791.40
  4. Step 4: Simplify right side
    112,218,117.80x = 10,289,382,279,321,536
  5. Step 5: Solve for x
    x = 10,289,382,279,321,536/112,218,117.80
  6. Step 6: Final answer
    x = 91,690,918.37

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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.