Home / 139,254,423.78-192,175,712.25-76,532,744.97

Finding the Fourth Proportional to 139,254,423.78, 192,175,712.25 and 76,532,744.97

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Solution

The fourth proportional to 139,254,423.78, 192,175,712.25 and 76,532,744.97 is: 105,617,720.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,254,423.78 : 192,175,712.25 = 76,532,744.97 : x
  2. Step 2: Convert to fraction form
    139,254,423.78/192,175,712.25 = 76,532,744.97/x
  3. Step 3: Cross multiply
    139,254,423.78x = 192,175,712.25 × 76,532,744.97
  4. Step 4: Simplify right side
    139,254,423.78x = 14,707,734,775,057,354
  5. Step 5: Solve for x
    x = 14,707,734,775,057,354/139,254,423.78
  6. Step 6: Final answer
    x = 105,617,720.25

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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.