Home / 79,135,628.45-109,213,225.70-49,792,113.63

Finding the Fourth Proportional to 79,135,628.45, 109,213,225.70 and 49,792,113.63

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Solution

The fourth proportional to 79,135,628.45, 109,213,225.70 and 49,792,113.63 is: 68,716,928.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,135,628.45 : 109,213,225.70 = 49,792,113.63 : x
  2. Step 2: Convert to fraction form
    79,135,628.45/109,213,225.70 = 49,792,113.63/x
  3. Step 3: Cross multiply
    79,135,628.45x = 109,213,225.70 × 49,792,113.63
  4. Step 4: Simplify right side
    79,135,628.45x = 5,437,957,343,704,276
  5. Step 5: Solve for x
    x = 5,437,957,343,704,276/79,135,628.45
  6. Step 6: Final answer
    x = 68,716,928.78

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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.