Home / 418,470,674.32-628,093,868.70-211,354,534.78

Finding the Fourth Proportional to 418,470,674.32, 628,093,868.70 and 211,354,534.78

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Solution

The fourth proportional to 418,470,674.32, 628,093,868.70 and 211,354,534.78 is: 317,227,694.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,470,674.32 : 628,093,868.70 = 211,354,534.78 : x
  2. Step 2: Convert to fraction form
    418,470,674.32/628,093,868.70 = 211,354,534.78/x
  3. Step 3: Cross multiply
    418,470,674.32x = 628,093,868.70 × 211,354,534.78
  4. Step 4: Simplify right side
    418,470,674.32x = 132,750,487,415,160,288
  5. Step 5: Solve for x
    x = 132,750,487,415,160,288/418,470,674.32
  6. Step 6: Final answer
    x = 317,227,694.94

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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.