Home / 57,237,049.89-78,979,959.75-38,692,539.21

Finding the Fourth Proportional to 57,237,049.89, 78,979,959.75 and 38,692,539.21

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Solution

The fourth proportional to 57,237,049.89, 78,979,959.75 and 38,692,539.21 is: 53,390,857.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,237,049.89 : 78,979,959.75 = 38,692,539.21 : x
  2. Step 2: Convert to fraction form
    57,237,049.89/78,979,959.75 = 38,692,539.21/x
  3. Step 3: Cross multiply
    57,237,049.89x = 78,979,959.75 × 38,692,539.21
  4. Step 4: Simplify right side
    57,237,049.89x = 3,055,935,189,431,097
  5. Step 5: Solve for x
    x = 3,055,935,189,431,097/57,237,049.89
  6. Step 6: Final answer
    x = 53,390,857.76

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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.