Home / 281,231,161.45-421,845,537.35-71,143,835.96

Finding the Fourth Proportional to 281,231,161.45, 421,845,537.35 and 71,143,835.96

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Solution

The fourth proportional to 281,231,161.45, 421,845,537.35 and 71,143,835.96 is: 106,715,449.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,231,161.45 : 421,845,537.35 = 71,143,835.96 : x
  2. Step 2: Convert to fraction form
    281,231,161.45/421,845,537.35 = 71,143,835.96/x
  3. Step 3: Cross multiply
    281,231,161.45x = 421,845,537.35 × 71,143,835.96
  4. Step 4: Simplify right side
    281,231,161.45x = 30,011,709,710,518,388
  5. Step 5: Solve for x
    x = 30,011,709,710,518,388/281,231,161.45
  6. Step 6: Final answer
    x = 106,715,449.16

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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.