Home / 252,664,277.70-378,996,416.55-154,453,980.90

Finding the Fourth Proportional to 252,664,277.70, 378,996,416.55 and 154,453,980.90

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Solution

The fourth proportional to 252,664,277.70, 378,996,416.55 and 154,453,980.90 is: 231,680,971.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,664,277.70 : 378,996,416.55 = 154,453,980.90 : x
  2. Step 2: Convert to fraction form
    252,664,277.70/378,996,416.55 = 154,453,980.90/x
  3. Step 3: Cross multiply
    252,664,277.70x = 378,996,416.55 × 154,453,980.90
  4. Step 4: Simplify right side
    252,664,277.70x = 58,537,505,282,982,144
  5. Step 5: Solve for x
    x = 58,537,505,282,982,144/252,664,277.70
  6. Step 6: Final answer
    x = 231,680,971.35

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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.