Home / 20,704,481.47-28,572,297.78-12,007,810.36

Finding the Fourth Proportional to 20,704,481.47, 28,572,297.78 and 12,007,810.36

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Solution

The fourth proportional to 20,704,481.47, 28,572,297.78 and 12,007,810.36 is: 16,570,844.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,704,481.47 : 28,572,297.78 = 12,007,810.36 : x
  2. Step 2: Convert to fraction form
    20,704,481.47/28,572,297.78 = 12,007,810.36/x
  3. Step 3: Cross multiply
    20,704,481.47x = 28,572,297.78 × 12,007,810.36
  4. Step 4: Simplify right side
    20,704,481.47x = 343,090,733,291,689
  5. Step 5: Solve for x
    x = 343,090,733,291,689/20,704,481.47
  6. Step 6: Final answer
    x = 16,570,844.04

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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.