Home / 142,221,048.36-196,280,974.68-80,345,372.72

Finding the Fourth Proportional to 142,221,048.36, 196,280,974.68 and 80,345,372.72

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Solution

The fourth proportional to 142,221,048.36, 196,280,974.68 and 80,345,372.72 is: 110,885,612.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,221,048.36 : 196,280,974.68 = 80,345,372.72 : x
  2. Step 2: Convert to fraction form
    142,221,048.36/196,280,974.68 = 80,345,372.72/x
  3. Step 3: Cross multiply
    142,221,048.36x = 196,280,974.68 × 80,345,372.72
  4. Step 4: Simplify right side
    142,221,048.36x = 15,770,268,068,509,484
  5. Step 5: Solve for x
    x = 15,770,268,068,509,484/142,221,048.36
  6. Step 6: Final answer
    x = 110,885,612.58

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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.