Home / 84,836,650.82-127,078,417.28-53,978,372.42

Finding the Fourth Proportional to 84,836,650.82, 127,078,417.28 and 53,978,372.42

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Solution

The fourth proportional to 84,836,650.82, 127,078,417.28 and 53,978,372.42 is: 80,855,220.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,836,650.82 : 127,078,417.28 = 53,978,372.42 : x
  2. Step 2: Convert to fraction form
    84,836,650.82/127,078,417.28 = 53,978,372.42/x
  3. Step 3: Cross multiply
    84,836,650.82x = 127,078,417.28 × 53,978,372.42
  4. Step 4: Simplify right side
    84,836,650.82x = 6,859,486,133,983,557
  5. Step 5: Solve for x
    x = 6,859,486,133,983,557/84,836,650.82
  6. Step 6: Final answer
    x = 80,855,220.80

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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.