Home / 21,315,064.39-29,414,768.12-11,525,485.15

Finding the Fourth Proportional to 21,315,064.39, 29,414,768.12 and 11,525,485.15

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Solution

The fourth proportional to 21,315,064.39, 29,414,768.12 and 11,525,485.15 is: 15,905,158.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,315,064.39 : 29,414,768.12 = 11,525,485.15 : x
  2. Step 2: Convert to fraction form
    21,315,064.39/29,414,768.12 = 11,525,485.15/x
  3. Step 3: Cross multiply
    21,315,064.39x = 29,414,768.12 × 11,525,485.15
  4. Step 4: Simplify right side
    21,315,064.39x = 339,019,472,953,052.12
  5. Step 5: Solve for x
    x = 339,019,472,953,052.12/21,315,064.39
  6. Step 6: Final answer
    x = 15,905,158.29

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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.