Home / 75,629,231.70-113,443,847.55-21,781,986.90

Finding the Fourth Proportional to 75,629,231.70, 113,443,847.55 and 21,781,986.90

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Solution

The fourth proportional to 75,629,231.70, 113,443,847.55 and 21,781,986.90 is: 32,672,980.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,629,231.70 : 113,443,847.55 = 21,781,986.90 : x
  2. Step 2: Convert to fraction form
    75,629,231.70/113,443,847.55 = 21,781,986.90/x
  3. Step 3: Cross multiply
    75,629,231.70x = 113,443,847.55 × 21,781,986.90
  4. Step 4: Simplify right side
    75,629,231.70x = 2,471,032,401,219,697
  5. Step 5: Solve for x
    x = 2,471,032,401,219,697/75,629,231.70
  6. Step 6: Final answer
    x = 32,672,980.35

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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.