Home / 78,664,381.80-108,557,301.78-43,859,239.08

Finding the Fourth Proportional to 78,664,381.80, 108,557,301.78 and 43,859,239.08

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Solution

The fourth proportional to 78,664,381.80, 108,557,301.78 and 43,859,239.08 is: 60,526,003.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,664,381.80 : 108,557,301.78 = 43,859,239.08 : x
  2. Step 2: Convert to fraction form
    78,664,381.80/108,557,301.78 = 43,859,239.08/x
  3. Step 3: Cross multiply
    78,664,381.80x = 108,557,301.78 × 43,859,239.08
  4. Step 4: Simplify right side
    78,664,381.80x = 4,761,240,652,648,729
  5. Step 5: Solve for x
    x = 4,761,240,652,648,729/78,664,381.80
  6. Step 6: Final answer
    x = 60,526,003.56

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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.