Home / 20,421,543.34-28,181,730.39-11,254,186.09

Finding the Fourth Proportional to 20,421,543.34, 28,181,730.39 and 11,254,186.09

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Solution

The fourth proportional to 20,421,543.34, 28,181,730.39 and 11,254,186.09 is: 15,530,777.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,421,543.34 : 28,181,730.39 = 11,254,186.09 : x
  2. Step 2: Convert to fraction form
    20,421,543.34/28,181,730.39 = 11,254,186.09/x
  3. Step 3: Cross multiply
    20,421,543.34x = 28,181,730.39 × 11,254,186.09
  4. Step 4: Simplify right side
    20,421,543.34x = 317,162,438,147,268.25
  5. Step 5: Solve for x
    x = 317,162,438,147,268.25/20,421,543.34
  6. Step 6: Final answer
    x = 15,530,777.12

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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.