Home / 142,460,540-196,593,616.02-79,736,619.32

Finding the Fourth Proportional to 142,460,540, 196,593,616.02 and 79,736,619.32

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Solution

The fourth proportional to 142,460,540, 196,593,616.02 and 79,736,619.32 is: 110,035,454.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,460,540 : 196,593,616.02 = 79,736,619.32 : x
  2. Step 2: Convert to fraction form
    142,460,540/196,593,616.02 = 79,736,619.32/x
  3. Step 3: Cross multiply
    142,460,540x = 196,593,616.02 × 79,736,619.32
  4. Step 4: Simplify right side
    142,460,540x = 15,675,710,321,328,992
  5. Step 5: Solve for x
    x = 15,675,710,321,328,992/142,460,540
  6. Step 6: Final answer
    x = 110,035,454.88

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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.