Home / 5,429,032.84-8,143,542.36-1,385,520.73

Finding the Fourth Proportional to 5,429,032.84, 8,143,542.36 and 1,385,520.73

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Solution

The fourth proportional to 5,429,032.84, 8,143,542.36 and 1,385,520.73 is: 2,078,279.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,429,032.84 : 8,143,542.36 = 1,385,520.73 : x
  2. Step 2: Convert to fraction form
    5,429,032.84/8,143,542.36 = 1,385,520.73/x
  3. Step 3: Cross multiply
    5,429,032.84x = 8,143,542.36 × 1,385,520.73
  4. Step 4: Simplify right side
    5,429,032.84x = 11,283,046,755,413.12
  5. Step 5: Solve for x
    x = 11,283,046,755,413.12/5,429,032.84
  6. Step 6: Final answer
    x = 2,078,279.33

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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.