Home / 28,729,034.86-39,647,023.68-15,677,009.68

Finding the Fourth Proportional to 28,729,034.86, 39,647,023.68 and 15,677,009.68

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Solution

The fourth proportional to 28,729,034.86, 39,647,023.68 and 15,677,009.68 is: 21,634,794.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,729,034.86 : 39,647,023.68 = 15,677,009.68 : x
  2. Step 2: Convert to fraction form
    28,729,034.86/39,647,023.68 = 15,677,009.68/x
  3. Step 3: Cross multiply
    28,729,034.86x = 39,647,023.68 × 15,677,009.68
  4. Step 4: Simplify right side
    28,729,034.86x = 621,546,774,014,549.25
  5. Step 5: Solve for x
    x = 621,546,774,014,549.25/28,729,034.86
  6. Step 6: Final answer
    x = 21,634,794.80

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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.