Home / 80,170,936.36-120,341,443.56-71,008,389.34

Finding the Fourth Proportional to 80,170,936.36, 120,341,443.56 and 71,008,389.34

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Solution

The fourth proportional to 80,170,936.36, 120,341,443.56 and 71,008,389.34 is: 106,587,904.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,170,936.36 : 120,341,443.56 = 71,008,389.34 : x
  2. Step 2: Convert to fraction form
    80,170,936.36/120,341,443.56 = 71,008,389.34/x
  3. Step 3: Cross multiply
    80,170,936.36x = 120,341,443.56 × 71,008,389.34
  4. Step 4: Simplify right side
    80,170,936.36x = 8,545,252,078,046,116
  5. Step 5: Solve for x
    x = 8,545,252,078,046,116/80,170,936.36
  6. Step 6: Final answer
    x = 106,587,904.12

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.