Home / 20,980,081.18-28,742,813.74-20,193,753.50

Finding the Fourth Proportional to 20,980,081.18, 28,742,813.74 and 20,193,753.50

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Solution

The fourth proportional to 20,980,081.18, 28,742,813.74 and 20,193,753.50 is: 27,665,540.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,980,081.18 : 28,742,813.74 = 20,193,753.50 : x
  2. Step 2: Convert to fraction form
    20,980,081.18/28,742,813.74 = 20,193,753.50/x
  3. Step 3: Cross multiply
    20,980,081.18x = 28,742,813.74 × 20,193,753.50
  4. Step 4: Simplify right side
    20,980,081.18x = 580,425,295,561,973
  5. Step 5: Solve for x
    x = 580,425,295,561,973/20,980,081.18
  6. Step 6: Final answer
    x = 27,665,540.98

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.