Home / 20,775,064.48-28,668,462.24-11,605,935.76

Finding the Fourth Proportional to 20,775,064.48, 28,668,462.24 and 11,605,935.76

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Solution

The fourth proportional to 20,775,064.48, 28,668,462.24 and 11,605,935.76 is: 16,015,561.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,775,064.48 : 28,668,462.24 = 11,605,935.76 : x
  2. Step 2: Convert to fraction form
    20,775,064.48/28,668,462.24 = 11,605,935.76/x
  3. Step 3: Cross multiply
    20,775,064.48x = 28,668,462.24 × 11,605,935.76
  4. Step 4: Simplify right side
    20,775,064.48x = 332,724,331,095,425.69
  5. Step 5: Solve for x
    x = 332,724,331,095,425.69/20,775,064.48
  6. Step 6: Final answer
    x = 16,015,561.90

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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.