Home / 347,328,014.40-520,992,021.60-218,081,563.20

Finding the Fourth Proportional to 347,328,014.40, 520,992,021.60 and 218,081,563.20

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Solution

The fourth proportional to 347,328,014.40, 520,992,021.60 and 218,081,563.20 is: 327,122,344.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,328,014.40 : 520,992,021.60 = 218,081,563.20 : x
  2. Step 2: Convert to fraction form
    347,328,014.40/520,992,021.60 = 218,081,563.20/x
  3. Step 3: Cross multiply
    347,328,014.40x = 520,992,021.60 × 218,081,563.20
  4. Step 4: Simplify right side
    347,328,014.40x = 113,618,754,485,256,160
  5. Step 5: Solve for x
    x = 113,618,754,485,256,160/347,328,014.40
  6. Step 6: Final answer
    x = 327,122,344.80

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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.