Home / 13,620,970.14-18,786,310.02-8,726,650.80

Finding the Fourth Proportional to 13,620,970.14, 18,786,310.02 and 8,726,650.80

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Solution

The fourth proportional to 13,620,970.14, 18,786,310.02 and 8,726,650.80 is: 12,035,968.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,620,970.14 : 18,786,310.02 = 8,726,650.80 : x
  2. Step 2: Convert to fraction form
    13,620,970.14/18,786,310.02 = 8,726,650.80/x
  3. Step 3: Cross multiply
    13,620,970.14x = 18,786,310.02 × 8,726,650.80
  4. Step 4: Simplify right side
    13,620,970.14x = 163,941,567,365,081.03
  5. Step 5: Solve for x
    x = 163,941,567,365,081.03/13,620,970.14
  6. Step 6: Final answer
    x = 12,035,968.49

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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.