Home / 142,582,285.82-196,758,463.43-80,701,295.78

Finding the Fourth Proportional to 142,582,285.82, 196,758,463.43 and 80,701,295.78

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Solution

The fourth proportional to 142,582,285.82, 196,758,463.43 and 80,701,295.78 is: 111,364,906.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,582,285.82 : 196,758,463.43 = 80,701,295.78 : x
  2. Step 2: Convert to fraction form
    142,582,285.82/196,758,463.43 = 80,701,295.78/x
  3. Step 3: Cross multiply
    142,582,285.82x = 196,758,463.43 × 80,701,295.78
  4. Step 4: Simplify right side
    142,582,285.82x = 15,878,662,953,700,706
  5. Step 5: Solve for x
    x = 15,878,662,953,700,706/142,582,285.82
  6. Step 6: Final answer
    x = 111,364,906.68

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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.