Home / 21,017,906.70-31,532,764.95-10,235,559.30

Finding the Fourth Proportional to 21,017,906.70, 31,532,764.95 and 10,235,559.30

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Solution

The fourth proportional to 21,017,906.70, 31,532,764.95 and 10,235,559.30 is: 15,356,214.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,017,906.70 : 31,532,764.95 = 10,235,559.30 : x
  2. Step 2: Convert to fraction form
    21,017,906.70/31,532,764.95 = 10,235,559.30/x
  3. Step 3: Cross multiply
    21,017,906.70x = 31,532,764.95 × 10,235,559.30
  4. Step 4: Simplify right side
    21,017,906.70x = 322,755,485,538,686.56
  5. Step 5: Solve for x
    x = 322,755,485,538,686.56/21,017,906.70
  6. Step 6: Final answer
    x = 15,356,214.59

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.