Home / 470,107,243.20-705,160,864.80-394,860,446.40

Finding the Fourth Proportional to 470,107,243.20, 705,160,864.80 and 394,860,446.40

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Solution

The fourth proportional to 470,107,243.20, 705,160,864.80 and 394,860,446.40 is: 592,290,669.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    470,107,243.20 : 705,160,864.80 = 394,860,446.40 : x
  2. Step 2: Convert to fraction form
    470,107,243.20/705,160,864.80 = 394,860,446.40/x
  3. Step 3: Cross multiply
    470,107,243.20x = 705,160,864.80 × 394,860,446.40
  4. Step 4: Simplify right side
    470,107,243.20x = 278,440,133,858,738,016
  5. Step 5: Solve for x
    x = 278,440,133,858,738,016/470,107,243.20
  6. Step 6: Final answer
    x = 592,290,669.60

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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.