Home / 72,939,166.55-100,658,450.64-39,898,659.56

Finding the Fourth Proportional to 72,939,166.55, 100,658,450.64 and 39,898,659.56

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Solution

The fourth proportional to 72,939,166.55, 100,658,450.64 and 39,898,659.56 is: 55,061,463.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,939,166.55 : 100,658,450.64 = 39,898,659.56 : x
  2. Step 2: Convert to fraction form
    72,939,166.55/100,658,450.64 = 39,898,659.56/x
  3. Step 3: Cross multiply
    72,939,166.55x = 100,658,450.64 × 39,898,659.56
  4. Step 4: Simplify right side
    72,939,166.55x = 4,016,137,253,419,132
  5. Step 5: Solve for x
    x = 4,016,137,253,419,132/72,939,166.55
  6. Step 6: Final answer
    x = 55,061,463.46

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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.