Home / 261,069,021.96-391,648,146.96-107,631,201.48

Finding the Fourth Proportional to 261,069,021.96, 391,648,146.96 and 107,631,201.48

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Solution

The fourth proportional to 261,069,021.96, 391,648,146.96 and 107,631,201.48 is: 161,465,195.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,069,021.96 : 391,648,146.96 = 107,631,201.48 : x
  2. Step 2: Convert to fraction form
    261,069,021.96/391,648,146.96 = 107,631,201.48/x
  3. Step 3: Cross multiply
    261,069,021.96x = 391,648,146.96 × 107,631,201.48
  4. Step 4: Simplify right side
    261,069,021.96x = 42,153,560,614,720,408
  5. Step 5: Solve for x
    x = 42,153,560,614,720,408/261,069,021.96
  6. Step 6: Final answer
    x = 161,465,195.29

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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.