Home / 142,170,912.93-213,231,983.53-45,104,985.21

Finding the Fourth Proportional to 142,170,912.93, 213,231,983.53 and 45,104,985.21

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Solution

The fourth proportional to 142,170,912.93, 213,231,983.53 and 45,104,985.21 is: 67,649,741.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,170,912.93 : 213,231,983.53 = 45,104,985.21 : x
  2. Step 2: Convert to fraction form
    142,170,912.93/213,231,983.53 = 45,104,985.21/x
  3. Step 3: Cross multiply
    142,170,912.93x = 213,231,983.53 × 45,104,985.21
  4. Step 4: Simplify right side
    142,170,912.93x = 9,617,825,463,419,614
  5. Step 5: Solve for x
    x = 9,617,825,463,419,614/142,170,912.93
  6. Step 6: Final answer
    x = 67,649,741.18

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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.