Home / 21,021,439.31-29,009,588.97-11,854,084.49

Finding the Fourth Proportional to 21,021,439.31, 29,009,588.97 and 11,854,084.49

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Solution

The fourth proportional to 21,021,439.31, 29,009,588.97 and 11,854,084.49 is: 16,358,638.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,021,439.31 : 29,009,588.97 = 11,854,084.49 : x
  2. Step 2: Convert to fraction form
    21,021,439.31/29,009,588.97 = 11,854,084.49/x
  3. Step 3: Cross multiply
    21,021,439.31x = 29,009,588.97 × 11,854,084.49
  4. Step 4: Simplify right side
    21,021,439.31x = 343,882,118,525,504.12
  5. Step 5: Solve for x
    x = 343,882,118,525,504.12/21,021,439.31
  6. Step 6: Final answer
    x = 16,358,638.13

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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.