Home / 20,523,155.52-28,321,956.81-11,230,727.63

Finding the Fourth Proportional to 20,523,155.52, 28,321,956.81 and 11,230,727.63

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Solution

The fourth proportional to 20,523,155.52, 28,321,956.81 and 11,230,727.63 is: 15,498,405.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,523,155.52 : 28,321,956.81 = 11,230,727.63 : x
  2. Step 2: Convert to fraction form
    20,523,155.52/28,321,956.81 = 11,230,727.63/x
  3. Step 3: Cross multiply
    20,523,155.52x = 28,321,956.81 × 11,230,727.63
  4. Step 4: Simplify right side
    20,523,155.52x = 318,076,182,740,123.88
  5. Step 5: Solve for x
    x = 318,076,182,740,123.88/20,523,155.52
  6. Step 6: Final answer
    x = 15,498,405.32

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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.