Home / 281,302,891.80-421,954,337.70-76,830,967.05

Finding the Fourth Proportional to 281,302,891.80, 421,954,337.70 and 76,830,967.05

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Solution

The fourth proportional to 281,302,891.80, 421,954,337.70 and 76,830,967.05 is: 115,246,450.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,302,891.80 : 421,954,337.70 = 76,830,967.05 : x
  2. Step 2: Convert to fraction form
    281,302,891.80/421,954,337.70 = 76,830,967.05/x
  3. Step 3: Cross multiply
    281,302,891.80x = 421,954,337.70 × 76,830,967.05
  4. Step 4: Simplify right side
    281,302,891.80x = 32,419,159,816,433,272
  5. Step 5: Solve for x
    x = 32,419,159,816,433,272/281,302,891.80
  6. Step 6: Final answer
    x = 115,246,450.58

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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.