Home / 69,761,010.45-104,641,515.69-21,238,478.85

Finding the Fourth Proportional to 69,761,010.45, 104,641,515.69 and 21,238,478.85

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Solution

The fourth proportional to 69,761,010.45, 104,641,515.69 and 21,238,478.85 is: 31,857,718.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,761,010.45 : 104,641,515.69 = 21,238,478.85 : x
  2. Step 2: Convert to fraction form
    69,761,010.45/104,641,515.69 = 21,238,478.85/x
  3. Step 3: Cross multiply
    69,761,010.45x = 104,641,515.69 × 21,238,478.85
  4. Step 4: Simplify right side
    69,761,010.45x = 2,222,426,617,814,008.25
  5. Step 5: Solve for x
    x = 2,222,426,617,814,008.25/69,761,010.45
  6. Step 6: Final answer
    x = 31,857,718.28

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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.