Home / 20,947,760.47-28,907,456.31-12,127,583.64

Finding the Fourth Proportional to 20,947,760.47, 28,907,456.31 and 12,127,583.64

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Solution

The fourth proportional to 20,947,760.47, 28,907,456.31 and 12,127,583.64 is: 16,735,803.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,947,760.47 : 28,907,456.31 = 12,127,583.64 : x
  2. Step 2: Convert to fraction form
    20,947,760.47/28,907,456.31 = 12,127,583.64/x
  3. Step 3: Cross multiply
    20,947,760.47x = 28,907,456.31 × 12,127,583.64
  4. Step 4: Simplify right side
    20,947,760.47x = 350,577,594,219,170.75
  5. Step 5: Solve for x
    x = 350,577,594,219,170.75/20,947,760.47
  6. Step 6: Final answer
    x = 16,735,803.08

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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.