Home / 84,685,642.84-116,823,098.10-55,334,134.36

Finding the Fourth Proportional to 84,685,642.84, 116,823,098.10 and 55,334,134.36

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Solution

The fourth proportional to 84,685,642.84, 116,823,098.10 and 55,334,134.36 is: 76,332,950.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,685,642.84 : 116,823,098.10 = 55,334,134.36 : x
  2. Step 2: Convert to fraction form
    84,685,642.84/116,823,098.10 = 55,334,134.36/x
  3. Step 3: Cross multiply
    84,685,642.84x = 116,823,098.10 × 55,334,134.36
  4. Step 4: Simplify right side
    84,685,642.84x = 6,464,305,006,616,860
  5. Step 5: Solve for x
    x = 6,464,305,006,616,860/84,685,642.84
  6. Step 6: Final answer
    x = 76,332,950.78

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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.