Home / 281,231,162.96-421,845,539.60-71,143,837.47

Finding the Fourth Proportional to 281,231,162.96, 421,845,539.60 and 71,143,837.47

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Solution

The fourth proportional to 281,231,162.96, 421,845,539.60 and 71,143,837.47 is: 106,715,451.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,231,162.96 : 421,845,539.60 = 71,143,837.47 : x
  2. Step 2: Convert to fraction form
    281,231,162.96/421,845,539.60 = 71,143,837.47/x
  3. Step 3: Cross multiply
    281,231,162.96x = 421,845,539.60 × 71,143,837.47
  4. Step 4: Simplify right side
    281,231,162.96x = 30,011,710,506,391,132
  5. Step 5: Solve for x
    x = 30,011,710,506,391,132/281,231,162.96
  6. Step 6: Final answer
    x = 106,715,451.41

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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.