Home / 85,291,162.36-127,936,644.18-27,783,340.72

Finding the Fourth Proportional to 85,291,162.36, 127,936,644.18 and 27,783,340.72

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Solution

The fourth proportional to 85,291,162.36, 127,936,644.18 and 27,783,340.72 is: 41,674,978.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,291,162.36 : 127,936,644.18 = 27,783,340.72 : x
  2. Step 2: Convert to fraction form
    85,291,162.36/127,936,644.18 = 27,783,340.72/x
  3. Step 3: Cross multiply
    85,291,162.36x = 127,936,644.18 × 27,783,340.72
  4. Step 4: Simplify right side
    85,291,162.36x = 3,554,507,375,826,345
  5. Step 5: Solve for x
    x = 3,554,507,375,826,345/85,291,162.36
  6. Step 6: Final answer
    x = 41,674,978.71

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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.