Home / 79,126,600.82-109,248,030.86-49,402,551.65

Finding the Fourth Proportional to 79,126,600.82, 109,248,030.86 and 49,402,551.65

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Solution

The fourth proportional to 79,126,600.82, 109,248,030.86 and 49,402,551.65 is: 68,208,812.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,126,600.82 : 109,248,030.86 = 49,402,551.65 : x
  2. Step 2: Convert to fraction form
    79,126,600.82/109,248,030.86 = 49,402,551.65/x
  3. Step 3: Cross multiply
    79,126,600.82x = 109,248,030.86 × 49,402,551.65
  4. Step 4: Simplify right side
    79,126,600.82x = 5,397,131,486,428,692
  5. Step 5: Solve for x
    x = 5,397,131,486,428,692/79,126,600.82
  6. Step 6: Final answer
    x = 68,208,812.60

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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.