Home / 84,109,519.80-116,123,682.48-64,492,722.72

Finding the Fourth Proportional to 84,109,519.80, 116,123,682.48 and 64,492,722.72

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Solution

The fourth proportional to 84,109,519.80, 116,123,682.48 and 64,492,722.72 is: 89,040,247.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,109,519.80 : 116,123,682.48 = 64,492,722.72 : x
  2. Step 2: Convert to fraction form
    84,109,519.80/116,123,682.48 = 64,492,722.72/x
  3. Step 3: Cross multiply
    84,109,519.80x = 116,123,682.48 × 64,492,722.72
  4. Step 4: Simplify right side
    84,109,519.80x = 7,489,132,455,407,962
  5. Step 5: Solve for x
    x = 7,489,132,455,407,962/84,109,519.80
  6. Step 6: Final answer
    x = 89,040,247.44

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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.