Home / 112,728,781.65-168,806,120.07-74,273,710.89

Finding the Fourth Proportional to 112,728,781.65, 168,806,120.07 and 74,273,710.89

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Solution

The fourth proportional to 112,728,781.65, 168,806,120.07 and 74,273,710.89 is: 111,221,435.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,728,781.65 : 168,806,120.07 = 74,273,710.89 : x
  2. Step 2: Convert to fraction form
    112,728,781.65/168,806,120.07 = 74,273,710.89/x
  3. Step 3: Cross multiply
    112,728,781.65x = 168,806,120.07 × 74,273,710.89
  4. Step 4: Simplify right side
    112,728,781.65x = 12,537,856,959,453,354
  5. Step 5: Solve for x
    x = 12,537,856,959,453,354/112,728,781.65
  6. Step 6: Final answer
    x = 111,221,435.87

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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.