Home / 142,379,868.85-196,491,847.95-79,652,224.84

Finding the Fourth Proportional to 142,379,868.85, 196,491,847.95 and 79,652,224.84

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Solution

The fourth proportional to 142,379,868.85, 196,491,847.95 and 79,652,224.84 is: 109,924,338.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,379,868.85 : 196,491,847.95 = 79,652,224.84 : x
  2. Step 2: Convert to fraction form
    142,379,868.85/196,491,847.95 = 79,652,224.84/x
  3. Step 3: Cross multiply
    142,379,868.85x = 196,491,847.95 × 79,652,224.84
  4. Step 4: Simplify right side
    142,379,868.85x = 15,651,012,852,140,492
  5. Step 5: Solve for x
    x = 15,651,012,852,140,492/142,379,868.85
  6. Step 6: Final answer
    x = 109,924,338.17

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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.