Home / 20,583,747.90-28,405,616.04-11,291,394.33

Finding the Fourth Proportional to 20,583,747.90, 28,405,616.04 and 11,291,394.33

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Solution

The fourth proportional to 20,583,747.90, 28,405,616.04 and 11,291,394.33 is: 15,582,148.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,583,747.90 : 28,405,616.04 = 11,291,394.33 : x
  2. Step 2: Convert to fraction form
    20,583,747.90/28,405,616.04 = 11,291,394.33/x
  3. Step 3: Cross multiply
    20,583,747.90x = 28,405,616.04 × 11,291,394.33
  4. Step 4: Simplify right side
    20,583,747.90x = 320,739,011,894,213.06
  5. Step 5: Solve for x
    x = 320,739,011,894,213.06/20,583,747.90
  6. Step 6: Final answer
    x = 15,582,148.28

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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.