Home / 142,086,094.86-196,078,732.11-80,206,967.82

Finding the Fourth Proportional to 142,086,094.86, 196,078,732.11 and 80,206,967.82

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Solution

The fourth proportional to 142,086,094.86, 196,078,732.11 and 80,206,967.82 is: 110,685,571.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,086,094.86 : 196,078,732.11 = 80,206,967.82 : x
  2. Step 2: Convert to fraction form
    142,086,094.86/196,078,732.11 = 80,206,967.82/x
  3. Step 3: Cross multiply
    142,086,094.86x = 196,078,732.11 × 80,206,967.82
  4. Step 4: Simplify right side
    142,086,094.86x = 15,726,880,556,533,170
  5. Step 5: Solve for x
    x = 15,726,880,556,533,170/142,086,094.86
  6. Step 6: Final answer
    x = 110,685,571.11

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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.