Home / 139,617,072.65-192,665,342.61-80,035,655.04

Finding the Fourth Proportional to 139,617,072.65, 192,665,342.61 and 80,035,655.04

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Solution

The fourth proportional to 139,617,072.65, 192,665,342.61 and 80,035,655.04 is: 110,445,639.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,617,072.65 : 192,665,342.61 = 80,035,655.04 : x
  2. Step 2: Convert to fraction form
    139,617,072.65/192,665,342.61 = 80,035,655.04/x
  3. Step 3: Cross multiply
    139,617,072.65x = 192,665,342.61 × 80,035,655.04
  4. Step 4: Simplify right side
    139,617,072.65x = 15,420,096,899,297,376
  5. Step 5: Solve for x
    x = 15,420,096,899,297,376/139,617,072.65
  6. Step 6: Final answer
    x = 110,445,639.68

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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.