Home / 100,954,979.75-139,432,792.23-67,857,767.85

Finding the Fourth Proportional to 100,954,979.75, 139,432,792.23 and 67,857,767.85

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Solution

The fourth proportional to 100,954,979.75, 139,432,792.23 and 67,857,767.85 is: 93,720,964.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,954,979.75 : 139,432,792.23 = 67,857,767.85 : x
  2. Step 2: Convert to fraction form
    100,954,979.75/139,432,792.23 = 67,857,767.85/x
  3. Step 3: Cross multiply
    100,954,979.75x = 139,432,792.23 × 67,857,767.85
  4. Step 4: Simplify right side
    100,954,979.75x = 9,461,598,045,453,462
  5. Step 5: Solve for x
    x = 9,461,598,045,453,462/100,954,979.75
  6. Step 6: Final answer
    x = 93,720,964.22

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.