Home / 21,008,027.18-28,991,049.45-11,350,235.18

Finding the Fourth Proportional to 21,008,027.18, 28,991,049.45 and 11,350,235.18

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Solution

The fourth proportional to 21,008,027.18, 28,991,049.45 and 11,350,235.18 is: 15,663,309.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,008,027.18 : 28,991,049.45 = 11,350,235.18 : x
  2. Step 2: Convert to fraction form
    21,008,027.18/28,991,049.45 = 11,350,235.18/x
  3. Step 3: Cross multiply
    21,008,027.18x = 28,991,049.45 × 11,350,235.18
  4. Step 4: Simplify right side
    21,008,027.18x = 329,055,229,372,509.62
  5. Step 5: Solve for x
    x = 329,055,229,372,509.62/21,008,027.18
  6. Step 6: Final answer
    x = 15,663,309.39

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1.5x scale

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.