Home / 85,291,508.82-127,937,164.14-27,783,687.72

Finding the Fourth Proportional to 85,291,508.82, 127,937,164.14 and 27,783,687.72

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Solution

The fourth proportional to 85,291,508.82, 127,937,164.14 and 27,783,687.72 is: 41,675,499.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,291,508.82 : 127,937,164.14 = 27,783,687.72 : x
  2. Step 2: Convert to fraction form
    85,291,508.82/127,937,164.14 = 27,783,687.72/x
  3. Step 3: Cross multiply
    85,291,508.82x = 127,937,164.14 × 27,783,687.72
  4. Step 4: Simplify right side
    85,291,508.82x = 3,554,566,216,248,142
  5. Step 5: Solve for x
    x = 3,554,566,216,248,142/85,291,508.82
  6. Step 6: Final answer
    x = 41,675,499.30

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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.