Home / 610,215,932.50-842,277,202.72-398,555,120.93

Finding the Fourth Proportional to 610,215,932.50, 842,277,202.72 and 398,555,120.93

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Solution

The fourth proportional to 610,215,932.50, 842,277,202.72 and 398,555,120.93 is: 550,123,119.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,215,932.50 : 842,277,202.72 = 398,555,120.93 : x
  2. Step 2: Convert to fraction form
    610,215,932.50/842,277,202.72 = 398,555,120.93/x
  3. Step 3: Cross multiply
    610,215,932.50x = 842,277,202.72 × 398,555,120.93
  4. Step 4: Simplify right side
    610,215,932.50x = 335,693,892,381,443,968
  5. Step 5: Solve for x
    x = 335,693,892,381,443,968/610,215,932.50
  6. Step 6: Final answer
    x = 550,123,119.54

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.