Home / 342,189,015.20-512,905,609.20-188,945,050.40

Finding the Fourth Proportional to 342,189,015.20, 512,905,609.20 and 188,945,050.40

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Solution

The fourth proportional to 342,189,015.20, 512,905,609.20 and 188,945,050.40 is: 283,208,904.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,189,015.20 : 512,905,609.20 = 188,945,050.40 : x
  2. Step 2: Convert to fraction form
    342,189,015.20/512,905,609.20 = 188,945,050.40/x
  3. Step 3: Cross multiply
    342,189,015.20x = 512,905,609.20 × 188,945,050.40
  4. Step 4: Simplify right side
    342,189,015.20x = 96,910,976,180,736,704
  5. Step 5: Solve for x
    x = 96,910,976,180,736,704/342,189,015.20
  6. Step 6: Final answer
    x = 283,208,904.66

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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.