Home / 285,351,740.80-393,819,019.20-169,458,236.80

Finding the Fourth Proportional to 285,351,740.80, 393,819,019.20 and 169,458,236.80

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Solution

The fourth proportional to 285,351,740.80, 393,819,019.20 and 169,458,236.80 is: 233,872,330.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,351,740.80 : 393,819,019.20 = 169,458,236.80 : x
  2. Step 2: Convert to fraction form
    285,351,740.80/393,819,019.20 = 169,458,236.80/x
  3. Step 3: Cross multiply
    285,351,740.80x = 393,819,019.20 × 169,458,236.80
  4. Step 4: Simplify right side
    285,351,740.80x = 66,735,876,611,937,352
  5. Step 5: Solve for x
    x = 66,735,876,611,937,352/285,351,740.80
  6. Step 6: Final answer
    x = 233,872,330.43

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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.