Home / 20,202,428.40-30,285,927.90-12,118,620.30

Finding the Fourth Proportional to 20,202,428.40, 30,285,927.90 and 12,118,620.30

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Solution

The fourth proportional to 20,202,428.40, 30,285,927.90 and 12,118,620.30 is: 18,167,304.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,202,428.40 : 30,285,927.90 = 12,118,620.30 : x
  2. Step 2: Convert to fraction form
    20,202,428.40/30,285,927.90 = 12,118,620.30/x
  3. Step 3: Cross multiply
    20,202,428.40x = 30,285,927.90 × 12,118,620.30
  4. Step 4: Simplify right side
    20,202,428.40x = 367,023,660,653,276.38
  5. Step 5: Solve for x
    x = 367,023,660,653,276.38/20,202,428.40
  6. Step 6: Final answer
    x = 18,167,304.12

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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.