Home / 85,190,435.10-127,842,255.45-31,337,747.10

Finding the Fourth Proportional to 85,190,435.10, 127,842,255.45 and 31,337,747.10

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Solution

The fourth proportional to 85,190,435.10, 127,842,255.45 and 31,337,747.10 is: 47,027,442.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,190,435.10 : 127,842,255.45 = 31,337,747.10 : x
  2. Step 2: Convert to fraction form
    85,190,435.10/127,842,255.45 = 31,337,747.10/x
  3. Step 3: Cross multiply
    85,190,435.10x = 127,842,255.45 × 31,337,747.10
  4. Step 4: Simplify right side
    85,190,435.10x = 4,006,288,269,985,697
  5. Step 5: Solve for x
    x = 4,006,288,269,985,697/85,190,435.10
  6. Step 6: Final answer
    x = 47,027,442.29

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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.