Home / 111,991,442.40-167,987,163.60-31,212,410.40

Finding the Fourth Proportional to 111,991,442.40, 167,987,163.60 and 31,212,410.40

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Solution

The fourth proportional to 111,991,442.40, 167,987,163.60 and 31,212,410.40 is: 46,818,615.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,991,442.40 : 167,987,163.60 = 31,212,410.40 : x
  2. Step 2: Convert to fraction form
    111,991,442.40/167,987,163.60 = 31,212,410.40/x
  3. Step 3: Cross multiply
    111,991,442.40x = 167,987,163.60 × 31,212,410.40
  4. Step 4: Simplify right side
    111,991,442.40x = 5,243,284,292,215,141
  5. Step 5: Solve for x
    x = 5,243,284,292,215,141/111,991,442.40
  6. Step 6: Final answer
    x = 46,818,615.60

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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.