Home / 71,110,665.78-98,140,682.73-40,172,827.96

Finding the Fourth Proportional to 71,110,665.78, 98,140,682.73 and 40,172,827.96

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Solution

The fourth proportional to 71,110,665.78, 98,140,682.73 and 40,172,827.96 is: 55,443,001.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,110,665.78 : 98,140,682.73 = 40,172,827.96 : x
  2. Step 2: Convert to fraction form
    71,110,665.78/98,140,682.73 = 40,172,827.96/x
  3. Step 3: Cross multiply
    71,110,665.78x = 98,140,682.73 × 40,172,827.96
  4. Step 4: Simplify right side
    71,110,665.78x = 3,942,588,763,189,233.50
  5. Step 5: Solve for x
    x = 3,942,588,763,189,233.50/71,110,665.78
  6. Step 6: Final answer
    x = 55,443,001.69

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.