Home / 20,734,804.80-28,614,042.72-11,567,447.28

Finding the Fourth Proportional to 20,734,804.80, 28,614,042.72 and 11,567,447.28

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Solution

The fourth proportional to 20,734,804.80, 28,614,042.72 and 11,567,447.28 is: 15,963,083.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,734,804.80 : 28,614,042.72 = 11,567,447.28 : x
  2. Step 2: Convert to fraction form
    20,734,804.80/28,614,042.72 = 11,567,447.28/x
  3. Step 3: Cross multiply
    20,734,804.80x = 28,614,042.72 × 11,567,447.28
  4. Step 4: Simplify right side
    20,734,804.80x = 330,991,430,631,267.75
  5. Step 5: Solve for x
    x = 330,991,430,631,267.75/20,734,804.80
  6. Step 6: Final answer
    x = 15,963,083.99

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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.