Home / 21,019,439.12-29,006,830.92-11,852,083.76

Finding the Fourth Proportional to 21,019,439.12, 29,006,830.92 and 11,852,083.76

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Solution

The fourth proportional to 21,019,439.12, 29,006,830.92 and 11,852,083.76 is: 16,355,878.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,019,439.12 : 29,006,830.92 = 11,852,083.76 : x
  2. Step 2: Convert to fraction form
    21,019,439.12/29,006,830.92 = 11,852,083.76/x
  3. Step 3: Cross multiply
    21,019,439.12x = 29,006,830.92 × 11,852,083.76
  4. Step 4: Simplify right side
    21,019,439.12x = 343,791,389,675,997.88
  5. Step 5: Solve for x
    x = 343,791,389,675,997.88/21,019,439.12
  6. Step 6: Final answer
    x = 16,355,878.37

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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.