Home / 342,189,019.20-512,905,615.20-188,945,054.40

Finding the Fourth Proportional to 342,189,019.20, 512,905,615.20 and 188,945,054.40

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Solution

The fourth proportional to 342,189,019.20, 512,905,615.20 and 188,945,054.40 is: 283,208,910.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,189,019.20 : 512,905,615.20 = 188,945,054.40 : x
  2. Step 2: Convert to fraction form
    342,189,019.20/512,905,615.20 = 188,945,054.40/x
  3. Step 3: Cross multiply
    342,189,019.20x = 512,905,615.20 × 188,945,054.40
  4. Step 4: Simplify right side
    342,189,019.20x = 96,910,979,366,029,472
  5. Step 5: Solve for x
    x = 96,910,979,366,029,472/342,189,019.20
  6. Step 6: Final answer
    x = 283,208,910.66

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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.