Home / 55,207,309.20-76,182,977.16-30,427,420.56

Finding the Fourth Proportional to 55,207,309.20, 76,182,977.16 and 30,427,420.56

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Solution

The fourth proportional to 55,207,309.20, 76,182,977.16 and 30,427,420.56 is: 41,988,126.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,207,309.20 : 76,182,977.16 = 30,427,420.56 : x
  2. Step 2: Convert to fraction form
    55,207,309.20/76,182,977.16 = 30,427,420.56/x
  3. Step 3: Cross multiply
    55,207,309.20x = 76,182,977.16 × 30,427,420.56
  4. Step 4: Simplify right side
    55,207,309.20x = 2,318,051,485,560,194
  5. Step 5: Solve for x
    x = 2,318,051,485,560,194/55,207,309.20
  6. Step 6: Final answer
    x = 41,988,126.56

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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.