Home / 193,095,254.40-289,418,932.80-78,004,233.60

Finding the Fourth Proportional to 193,095,254.40, 289,418,932.80 and 78,004,233.60

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Solution

The fourth proportional to 193,095,254.40, 289,418,932.80 and 78,004,233.60 is: 116,915,882.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,095,254.40 : 289,418,932.80 = 78,004,233.60 : x
  2. Step 2: Convert to fraction form
    193,095,254.40/289,418,932.80 = 78,004,233.60/x
  3. Step 3: Cross multiply
    193,095,254.40x = 289,418,932.80 × 78,004,233.60
  4. Step 4: Simplify right side
    193,095,254.40x = 22,575,902,042,393,900
  5. Step 5: Solve for x
    x = 22,575,902,042,393,900/193,095,254.40
  6. Step 6: Final answer
    x = 116,915,882.33

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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.