Home / 85,232,712.80-127,858,400.40-82,545,327.20

Finding the Fourth Proportional to 85,232,712.80, 127,858,400.40 and 82,545,327.20

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Solution

The fourth proportional to 85,232,712.80, 127,858,400.40 and 82,545,327.20 is: 123,827,027.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,232,712.80 : 127,858,400.40 = 82,545,327.20 : x
  2. Step 2: Convert to fraction form
    85,232,712.80/127,858,400.40 = 82,545,327.20/x
  3. Step 3: Cross multiply
    85,232,712.80x = 127,858,400.40 × 82,545,327.20
  4. Step 4: Simplify right side
    85,232,712.80x = 10,554,113,496,286,612
  5. Step 5: Solve for x
    x = 10,554,113,496,286,612/85,232,712.80
  6. Step 6: Final answer
    x = 123,827,027.79

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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.