Home / 641,597,433.12-885,380,749.20-348,235,702.56

Finding the Fourth Proportional to 641,597,433.12, 885,380,749.20 and 348,235,702.56

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Solution

The fourth proportional to 641,597,433.12, 885,380,749.20 and 348,235,702.56 is: 480,552,401.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,597,433.12 : 885,380,749.20 = 348,235,702.56 : x
  2. Step 2: Convert to fraction form
    641,597,433.12/885,380,749.20 = 348,235,702.56/x
  3. Step 3: Cross multiply
    641,597,433.12x = 885,380,749.20 × 348,235,702.56
  4. Step 4: Simplify right side
    641,597,433.12x = 308,321,187,230,761,152
  5. Step 5: Solve for x
    x = 308,321,187,230,761,152/641,597,433.12
  6. Step 6: Final answer
    x = 480,552,401.42

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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.