Home / 20,485,600.34-30,730,468.90-6,651,980.69

Finding the Fourth Proportional to 20,485,600.34, 30,730,468.90 and 6,651,980.69

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Solution

The fourth proportional to 20,485,600.34, 30,730,468.90 and 6,651,980.69 is: 9,978,642.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,485,600.34 : 30,730,468.90 = 6,651,980.69 : x
  2. Step 2: Convert to fraction form
    20,485,600.34/30,730,468.90 = 6,651,980.69/x
  3. Step 3: Cross multiply
    20,485,600.34x = 30,730,468.90 × 6,651,980.69
  4. Step 4: Simplify right side
    20,485,600.34x = 204,418,485,530,533.28
  5. Step 5: Solve for x
    x = 204,418,485,530,533.28/20,485,600.34
  6. Step 6: Final answer
    x = 9,978,642.66

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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.