Home / 419,328,749.60-628,993,124.40-345,352,162.40

Finding the Fourth Proportional to 419,328,749.60, 628,993,124.40 and 345,352,162.40

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Solution

The fourth proportional to 419,328,749.60, 628,993,124.40 and 345,352,162.40 is: 518,028,243.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,328,749.60 : 628,993,124.40 = 345,352,162.40 : x
  2. Step 2: Convert to fraction form
    419,328,749.60/628,993,124.40 = 345,352,162.40/x
  3. Step 3: Cross multiply
    419,328,749.60x = 628,993,124.40 × 345,352,162.40
  4. Step 4: Simplify right side
    419,328,749.60x = 217,224,135,646,272,192
  5. Step 5: Solve for x
    x = 217,224,135,646,272,192/419,328,749.60
  6. Step 6: Final answer
    x = 518,028,243.60

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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.