Home / 18,903,540.30-28,355,310.45-8,807,181.90

Finding the Fourth Proportional to 18,903,540.30, 28,355,310.45 and 8,807,181.90

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Solution

The fourth proportional to 18,903,540.30, 28,355,310.45 and 8,807,181.90 is: 13,210,772.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,903,540.30 : 28,355,310.45 = 8,807,181.90 : x
  2. Step 2: Convert to fraction form
    18,903,540.30/28,355,310.45 = 8,807,181.90/x
  3. Step 3: Cross multiply
    18,903,540.30x = 28,355,310.45 × 8,807,181.90
  4. Step 4: Simplify right side
    18,903,540.30x = 249,730,376,964,120.84
  5. Step 5: Solve for x
    x = 249,730,376,964,120.84/18,903,540.30
  6. Step 6: Final answer
    x = 13,210,772.85

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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.