Home / 85,339,833.62-117,756,301.82-51,831,875.78

Finding the Fourth Proportional to 85,339,833.62, 117,756,301.82 and 51,831,875.78

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Solution

The fourth proportional to 85,339,833.62, 117,756,301.82 and 51,831,875.78 is: 71,520,294.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,339,833.62 : 117,756,301.82 = 51,831,875.78 : x
  2. Step 2: Convert to fraction form
    85,339,833.62/117,756,301.82 = 51,831,875.78/x
  3. Step 3: Cross multiply
    85,339,833.62x = 117,756,301.82 × 51,831,875.78
  4. Step 4: Simplify right side
    85,339,833.62x = 6,103,530,008,246,428
  5. Step 5: Solve for x
    x = 6,103,530,008,246,428/85,339,833.62
  6. Step 6: Final answer
    x = 71,520,294.21

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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.