Home / 21,019,278.88-29,007,320.56-12,198,047.18

Finding the Fourth Proportional to 21,019,278.88, 29,007,320.56 and 12,198,047.18

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Solution

The fourth proportional to 21,019,278.88, 29,007,320.56 and 12,198,047.18 is: 16,833,720.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,019,278.88 : 29,007,320.56 = 12,198,047.18 : x
  2. Step 2: Convert to fraction form
    21,019,278.88/29,007,320.56 = 12,198,047.18/x
  3. Step 3: Cross multiply
    21,019,278.88x = 29,007,320.56 × 12,198,047.18
  4. Step 4: Simplify right side
    21,019,278.88x = 353,832,664,808,333.38
  5. Step 5: Solve for x
    x = 353,832,664,808,333.38/21,019,278.88
  6. Step 6: Final answer
    x = 16,833,720.46

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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.