Home / 20,588,097.06-28,388,276.37-13,135,785.21

Finding the Fourth Proportional to 20,588,097.06, 28,388,276.37 and 13,135,785.21

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Solution

The fourth proportional to 20,588,097.06, 28,388,276.37 and 13,135,785.21 is: 18,112,519.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,588,097.06 : 28,388,276.37 = 13,135,785.21 : x
  2. Step 2: Convert to fraction form
    20,588,097.06/28,388,276.37 = 13,135,785.21/x
  3. Step 3: Cross multiply
    20,588,097.06x = 28,388,276.37 × 13,135,785.21
  4. Step 4: Simplify right side
    20,588,097.06x = 372,902,300,878,438.50
  5. Step 5: Solve for x
    x = 372,902,300,878,438.50/20,588,097.06
  6. Step 6: Final answer
    x = 18,112,519.08

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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.