Home / 138,017,999.10-206,851,163.85-73,352,783.10

Finding the Fourth Proportional to 138,017,999.10, 206,851,163.85 and 73,352,783.10

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Solution

The fourth proportional to 138,017,999.10, 206,851,163.85 and 73,352,783.10 is: 109,935,723.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,017,999.10 : 206,851,163.85 = 73,352,783.10 : x
  2. Step 2: Convert to fraction form
    138,017,999.10/206,851,163.85 = 73,352,783.10/x
  3. Step 3: Cross multiply
    138,017,999.10x = 206,851,163.85 × 73,352,783.10
  4. Step 4: Simplify right side
    138,017,999.10x = 15,173,108,555,871,610
  5. Step 5: Solve for x
    x = 15,173,108,555,871,610/138,017,999.10
  6. Step 6: Final answer
    x = 109,935,723.27

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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.