Home / 21,662,765.33-29,897,908.64-13,825,659.03

Finding the Fourth Proportional to 21,662,765.33, 29,897,908.64 and 13,825,659.03

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Solution

The fourth proportional to 21,662,765.33, 29,897,908.64 and 13,825,659.03 is: 19,081,510.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,662,765.33 : 29,897,908.64 = 13,825,659.03 : x
  2. Step 2: Convert to fraction form
    21,662,765.33/29,897,908.64 = 13,825,659.03/x
  3. Step 3: Cross multiply
    21,662,765.33x = 29,897,908.64 × 13,825,659.03
  4. Step 4: Simplify right side
    21,662,765.33x = 413,358,290,497,602.75
  5. Step 5: Solve for x
    x = 413,358,290,497,602.75/21,662,765.33
  6. Step 6: Final answer
    x = 19,081,510.80

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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.