Home / 21,315,072.64-29,414,779.50-11,525,493.40

Finding the Fourth Proportional to 21,315,072.64, 29,414,779.50 and 11,525,493.40

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Solution

The fourth proportional to 21,315,072.64, 29,414,779.50 and 11,525,493.40 is: 15,905,169.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,315,072.64 : 29,414,779.50 = 11,525,493.40 : x
  2. Step 2: Convert to fraction form
    21,315,072.64/29,414,779.50 = 11,525,493.40/x
  3. Step 3: Cross multiply
    21,315,072.64x = 29,414,779.50 × 11,525,493.40
  4. Step 4: Simplify right side
    21,315,072.64x = 339,019,846,989,705.31
  5. Step 5: Solve for x
    x = 339,019,846,989,705.31/21,315,072.64
  6. Step 6: Final answer
    x = 15,905,169.68

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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.