Home / 142,492,279.92-196,657,891.92-79,792,254.60

Finding the Fourth Proportional to 142,492,279.92, 196,657,891.92 and 79,792,254.60

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Solution

The fourth proportional to 142,492,279.92, 196,657,891.92 and 79,792,254.60 is: 110,123,696.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,492,279.92 : 196,657,891.92 = 79,792,254.60 : x
  2. Step 2: Convert to fraction form
    142,492,279.92/196,657,891.92 = 79,792,254.60/x
  3. Step 3: Cross multiply
    142,492,279.92x = 196,657,891.92 × 79,792,254.60
  4. Step 4: Simplify right side
    142,492,279.92x = 15,691,776,581,179,920
  5. Step 5: Solve for x
    x = 15,691,776,581,179,920/142,492,279.92
  6. Step 6: Final answer
    x = 110,123,696.46

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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.