Home / 227,082,749.12-313,374,145.38-122,660,821.52

Finding the Fourth Proportional to 227,082,749.12, 313,374,145.38 and 122,660,821.52

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Solution

The fourth proportional to 227,082,749.12, 313,374,145.38 and 122,660,821.52 is: 169,271,907.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    227,082,749.12 : 313,374,145.38 = 122,660,821.52 : x
  2. Step 2: Convert to fraction form
    227,082,749.12/313,374,145.38 = 122,660,821.52/x
  3. Step 3: Cross multiply
    227,082,749.12x = 313,374,145.38 × 122,660,821.52
  4. Step 4: Simplify right side
    227,082,749.12x = 38,438,730,115,438,712
  5. Step 5: Solve for x
    x = 38,438,730,115,438,712/227,082,749.12
  6. Step 6: Final answer
    x = 169,271,907.55

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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.