Home / 21,121,645.59-29,142,875.25-11,954,288.34

Finding the Fourth Proportional to 21,121,645.59, 29,142,875.25 and 11,954,288.34

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Solution

The fourth proportional to 21,121,645.59, 29,142,875.25 and 11,954,288.34 is: 16,494,090.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,121,645.59 : 29,142,875.25 = 11,954,288.34 : x
  2. Step 2: Convert to fraction form
    21,121,645.59/29,142,875.25 = 11,954,288.34/x
  3. Step 3: Cross multiply
    21,121,645.59x = 29,142,875.25 × 11,954,288.34
  4. Step 4: Simplify right side
    21,121,645.59x = 348,382,333,795,149.56
  5. Step 5: Solve for x
    x = 348,382,333,795,149.56/21,121,645.59
  6. Step 6: Final answer
    x = 16,494,090.50

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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.