Home / 75,705,778.01-113,559,577.05-21,115,040.69

Finding the Fourth Proportional to 75,705,778.01, 113,559,577.05 and 21,115,040.69

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Solution

The fourth proportional to 75,705,778.01, 113,559,577.05 and 21,115,040.69 is: 31,672,814.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,705,778.01 : 113,559,577.05 = 21,115,040.69 : x
  2. Step 2: Convert to fraction form
    75,705,778.01/113,559,577.05 = 21,115,040.69/x
  3. Step 3: Cross multiply
    75,705,778.01x = 113,559,577.05 × 21,115,040.69
  4. Step 4: Simplify right side
    75,705,778.01x = 2,397,815,090,149,940.50
  5. Step 5: Solve for x
    x = 2,397,815,090,149,940.50/75,705,778.01
  6. Step 6: Final answer
    x = 31,672,814.85

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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.