Home / 21,019,403.22-29,006,781.39-11,852,047.86

Finding the Fourth Proportional to 21,019,403.22, 29,006,781.39 and 11,852,047.86

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Solution

The fourth proportional to 21,019,403.22, 29,006,781.39 and 11,852,047.86 is: 16,355,828.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,019,403.22 : 29,006,781.39 = 11,852,047.86 : x
  2. Step 2: Convert to fraction form
    21,019,403.22/29,006,781.39 = 11,852,047.86/x
  3. Step 3: Cross multiply
    21,019,403.22x = 29,006,781.39 × 11,852,047.86
  4. Step 4: Simplify right side
    21,019,403.22x = 343,789,761,298,837.31
  5. Step 5: Solve for x
    x = 343,789,761,298,837.31/21,019,403.22
  6. Step 6: Final answer
    x = 16,355,828.84

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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.