Home / 15,561,419.06-21,474,704.94-8,685,840.98

Finding the Fourth Proportional to 15,561,419.06, 21,474,704.94 and 8,685,840.98

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Solution

The fourth proportional to 15,561,419.06, 21,474,704.94 and 8,685,840.98 is: 11,986,430.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,561,419.06 : 21,474,704.94 = 8,685,840.98 : x
  2. Step 2: Convert to fraction form
    15,561,419.06/21,474,704.94 = 8,685,840.98/x
  3. Step 3: Cross multiply
    15,561,419.06x = 21,474,704.94 × 8,685,840.98
  4. Step 4: Simplify right side
    15,561,419.06x = 186,525,872,201,260.47
  5. Step 5: Solve for x
    x = 186,525,872,201,260.47/15,561,419.06
  6. Step 6: Final answer
    x = 11,986,430.77

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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.