Home / 21,071,770.49-29,083,731.03-12,810,081.38

Finding the Fourth Proportional to 21,071,770.49, 29,083,731.03 and 12,810,081.38

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Solution

The fourth proportional to 21,071,770.49, 29,083,731.03 and 12,810,081.38 is: 17,680,762.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,071,770.49 : 29,083,731.03 = 12,810,081.38 : x
  2. Step 2: Convert to fraction form
    21,071,770.49/29,083,731.03 = 12,810,081.38/x
  3. Step 3: Cross multiply
    21,071,770.49x = 29,083,731.03 × 12,810,081.38
  4. Step 4: Simplify right side
    21,071,770.49x = 372,564,961,182,912.56
  5. Step 5: Solve for x
    x = 372,564,961,182,912.56/21,071,770.49
  6. Step 6: Final answer
    x = 17,680,762.10

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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.