Home / 18,795,421.10-28,193,155.79-5,148,687.44

Finding the Fourth Proportional to 18,795,421.10, 28,193,155.79 and 5,148,687.44

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Solution

The fourth proportional to 18,795,421.10, 28,193,155.79 and 5,148,687.44 is: 7,723,037.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,795,421.10 : 28,193,155.79 = 5,148,687.44 : x
  2. Step 2: Convert to fraction form
    18,795,421.10/28,193,155.79 = 5,148,687.44/x
  3. Step 3: Cross multiply
    18,795,421.10x = 28,193,155.79 × 5,148,687.44
  4. Step 4: Simplify right side
    18,795,421.10x = 145,157,747,154,675.72
  5. Step 5: Solve for x
    x = 145,157,747,154,675.72/18,795,421.10
  6. Step 6: Final answer
    x = 7,723,037.77

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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.