Home / 8,971,549-12,380,579.64-5,103,987.72

Finding the Fourth Proportional to 8,971,549, 12,380,579.64 and 5,103,987.72

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Solution

The fourth proportional to 8,971,549, 12,380,579.64 and 5,103,987.72 is: 7,043,413.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,971,549 : 12,380,579.64 = 5,103,987.72 : x
  2. Step 2: Convert to fraction form
    8,971,549/12,380,579.64 = 5,103,987.72/x
  3. Step 3: Cross multiply
    8,971,549x = 12,380,579.64 × 5,103,987.72
  4. Step 4: Simplify right side
    8,971,549x = 63,190,326,449,042.02
  5. Step 5: Solve for x
    x = 63,190,326,449,042.02/8,971,549
  6. Step 6: Final answer
    x = 7,043,413.18

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.