Home / 142,492,081.44-196,657,618.20-79,792,056.12

Finding the Fourth Proportional to 142,492,081.44, 196,657,618.20 and 79,792,056.12

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Solution

The fourth proportional to 142,492,081.44, 196,657,618.20 and 79,792,056.12 is: 110,123,422.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,492,081.44 : 196,657,618.20 = 79,792,056.12 : x
  2. Step 2: Convert to fraction form
    142,492,081.44/196,657,618.20 = 79,792,056.12/x
  3. Step 3: Cross multiply
    142,492,081.44x = 196,657,618.20 × 79,792,056.12
  4. Step 4: Simplify right side
    142,492,081.44x = 15,691,715,707,839,934
  5. Step 5: Solve for x
    x = 15,691,715,707,839,934/142,492,081.44
  6. Step 6: Final answer
    x = 110,123,422.64

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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.