Home / 112,339,945.80-168,509,918.70-99,585,361.80

Finding the Fourth Proportional to 112,339,945.80, 168,509,918.70 and 99,585,361.80

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Solution

The fourth proportional to 112,339,945.80, 168,509,918.70 and 99,585,361.80 is: 149,378,042.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,339,945.80 : 168,509,918.70 = 99,585,361.80 : x
  2. Step 2: Convert to fraction form
    112,339,945.80/168,509,918.70 = 99,585,361.80/x
  3. Step 3: Cross multiply
    112,339,945.80x = 168,509,918.70 × 99,585,361.80
  4. Step 4: Simplify right side
    112,339,945.80x = 16,781,121,220,628,084
  5. Step 5: Solve for x
    x = 16,781,121,220,628,084/112,339,945.80
  6. Step 6: Final answer
    x = 149,378,042.70

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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.