Home / 15,761,383.68-21,742,438.87-12,824,480.17

Finding the Fourth Proportional to 15,761,383.68, 21,742,438.87 and 12,824,480.17

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Solution

The fourth proportional to 15,761,383.68, 21,742,438.87 and 12,824,480.17 is: 17,691,053.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,761,383.68 : 21,742,438.87 = 12,824,480.17 : x
  2. Step 2: Convert to fraction form
    15,761,383.68/21,742,438.87 = 12,824,480.17/x
  3. Step 3: Cross multiply
    15,761,383.68x = 21,742,438.87 × 12,824,480.17
  4. Step 4: Simplify right side
    15,761,383.68x = 278,835,476,056,659.66
  5. Step 5: Solve for x
    x = 278,835,476,056,659.66/15,761,383.68
  6. Step 6: Final answer
    x = 17,691,053.12

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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.