Home / 79,135,604.66-109,213,192.85-49,792,089.84

Finding the Fourth Proportional to 79,135,604.66, 109,213,192.85 and 49,792,089.84

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Solution

The fourth proportional to 79,135,604.66, 109,213,192.85 and 49,792,089.84 is: 68,716,895.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,135,604.66 : 109,213,192.85 = 49,792,089.84 : x
  2. Step 2: Convert to fraction form
    79,135,604.66/109,213,192.85 = 49,792,089.84/x
  3. Step 3: Cross multiply
    79,135,604.66x = 109,213,192.85 × 49,792,089.84
  4. Step 4: Simplify right side
    79,135,604.66x = 5,437,953,110,100,446
  5. Step 5: Solve for x
    x = 5,437,953,110,100,446/79,135,604.66
  6. Step 6: Final answer
    x = 68,716,895.94

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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.