Home / 20,764,296.48-31,126,200-8,296,786.20

Finding the Fourth Proportional to 20,764,296.48, 31,126,200 and 8,296,786.20

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Solution

The fourth proportional to 20,764,296.48, 31,126,200 and 8,296,786.20 is: 12,437,090.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,764,296.48 : 31,126,200 = 8,296,786.20 : x
  2. Step 2: Convert to fraction form
    20,764,296.48/31,126,200 = 8,296,786.20/x
  3. Step 3: Cross multiply
    20,764,296.48x = 31,126,200 × 8,296,786.20
  4. Step 4: Simplify right side
    20,764,296.48x = 258,247,426,618,440
  5. Step 5: Solve for x
    x = 258,247,426,618,440/20,764,296.48
  6. Step 6: Final answer
    x = 12,437,090.12

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.