Home / 20,795,485.47-28,695,560.63-11,501,578.68

Finding the Fourth Proportional to 20,795,485.47, 28,695,560.63 and 11,501,578.68

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Solution

The fourth proportional to 20,795,485.47, 28,695,560.63 and 11,501,578.68 is: 15,870,956.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,795,485.47 : 28,695,560.63 = 11,501,578.68 : x
  2. Step 2: Convert to fraction form
    20,795,485.47/28,695,560.63 = 11,501,578.68/x
  3. Step 3: Cross multiply
    20,795,485.47x = 28,695,560.63 × 11,501,578.68
  4. Step 4: Simplify right side
    20,795,485.47x = 330,044,248,295,147.44
  5. Step 5: Solve for x
    x = 330,044,248,295,147.44/20,795,485.47
  6. Step 6: Final answer
    x = 15,870,956.64

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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.