Home / 21,707,761.86-29,955,368.97-11,918,151

Finding the Fourth Proportional to 21,707,761.86, 29,955,368.97 and 11,918,151

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Solution

The fourth proportional to 21,707,761.86, 29,955,368.97 and 11,918,151 is: 16,446,311.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,707,761.86 : 29,955,368.97 = 11,918,151 : x
  2. Step 2: Convert to fraction form
    21,707,761.86/29,955,368.97 = 11,918,151/x
  3. Step 3: Cross multiply
    21,707,761.86x = 29,955,368.97 × 11,918,151
  4. Step 4: Simplify right side
    21,707,761.86x = 357,012,610,645,174.44
  5. Step 5: Solve for x
    x = 357,012,610,645,174.44/21,707,761.86
  6. Step 6: Final answer
    x = 16,446,311.37

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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.