Home / 20,309,509.77-28,027,121.43-11,488,772.58

Finding the Fourth Proportional to 20,309,509.77, 28,027,121.43 and 11,488,772.58

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Solution

The fourth proportional to 20,309,509.77, 28,027,121.43 and 11,488,772.58 is: 15,854,505.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,309,509.77 : 28,027,121.43 = 11,488,772.58 : x
  2. Step 2: Convert to fraction form
    20,309,509.77/28,027,121.43 = 11,488,772.58/x
  3. Step 3: Cross multiply
    20,309,509.77x = 28,027,121.43 × 11,488,772.58
  4. Step 4: Simplify right side
    20,309,509.77x = 321,997,224,181,314.38
  5. Step 5: Solve for x
    x = 321,997,224,181,314.38/20,309,509.77
  6. Step 6: Final answer
    x = 15,854,505.00

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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.