Home / 57,345,942.72-79,137,090.36-31,240,397.88

Finding the Fourth Proportional to 57,345,942.72, 79,137,090.36 and 31,240,397.88

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Solution

The fourth proportional to 57,345,942.72, 79,137,090.36 and 31,240,397.88 is: 43,111,579.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,345,942.72 : 79,137,090.36 = 31,240,397.88 : x
  2. Step 2: Convert to fraction form
    57,345,942.72/79,137,090.36 = 31,240,397.88/x
  3. Step 3: Cross multiply
    57,345,942.72x = 79,137,090.36 × 31,240,397.88
  4. Step 4: Simplify right side
    57,345,942.72x = 2,472,274,189,911,912.50
  5. Step 5: Solve for x
    x = 2,472,274,189,911,912.50/57,345,942.72
  6. Step 6: Final answer
    x = 43,111,579.87

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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.