Home / 20,292,720.52-28,003,991.68-11,000,261.84

Finding the Fourth Proportional to 20,292,720.52, 28,003,991.68 and 11,000,261.84

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Solution

The fourth proportional to 20,292,720.52, 28,003,991.68 and 11,000,261.84 is: 15,180,381.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,292,720.52 : 28,003,991.68 = 11,000,261.84 : x
  2. Step 2: Convert to fraction form
    20,292,720.52/28,003,991.68 = 11,000,261.84/x
  3. Step 3: Cross multiply
    20,292,720.52x = 28,003,991.68 × 11,000,261.84
  4. Step 4: Simplify right side
    20,292,720.52x = 308,051,241,045,181.50
  5. Step 5: Solve for x
    x = 308,051,241,045,181.50/20,292,720.52
  6. Step 6: Final answer
    x = 15,180,381.59

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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.