Home / 19,200,781.85-28,816,305.01-8,425,520.33

Finding the Fourth Proportional to 19,200,781.85, 28,816,305.01 and 8,425,520.33

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Solution

The fourth proportional to 19,200,781.85, 28,816,305.01 and 8,425,520.33 is: 12,644,920.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,200,781.85 : 28,816,305.01 = 8,425,520.33 : x
  2. Step 2: Convert to fraction form
    19,200,781.85/28,816,305.01 = 8,425,520.33/x
  3. Step 3: Cross multiply
    19,200,781.85x = 28,816,305.01 × 8,425,520.33
  4. Step 4: Simplify right side
    19,200,781.85x = 242,792,363,532,090.50
  5. Step 5: Solve for x
    x = 242,792,363,532,090.50/19,200,781.85
  6. Step 6: Final answer
    x = 12,644,920.69

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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.