Home / 21,105,261.33-29,124,974.84-11,812,828.64

Finding the Fourth Proportional to 21,105,261.33, 29,124,974.84 and 11,812,828.64

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Solution

The fourth proportional to 21,105,261.33, 29,124,974.84 and 11,812,828.64 is: 16,301,543.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,105,261.33 : 29,124,974.84 = 11,812,828.64 : x
  2. Step 2: Convert to fraction form
    21,105,261.33/29,124,974.84 = 11,812,828.64/x
  3. Step 3: Cross multiply
    21,105,261.33x = 29,124,974.84 × 11,812,828.64
  4. Step 4: Simplify right side
    21,105,261.33x = 344,048,336,724,542.38
  5. Step 5: Solve for x
    x = 344,048,336,724,542.38/21,105,261.33
  6. Step 6: Final answer
    x = 16,301,543.55

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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.