Home / 14,387,656.80-21,581,485.20-12,540,079.20

Finding the Fourth Proportional to 14,387,656.80, 21,581,485.20 and 12,540,079.20

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Solution

The fourth proportional to 14,387,656.80, 21,581,485.20 and 12,540,079.20 is: 18,810,118.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,387,656.80 : 21,581,485.20 = 12,540,079.20 : x
  2. Step 2: Convert to fraction form
    14,387,656.80/21,581,485.20 = 12,540,079.20/x
  3. Step 3: Cross multiply
    14,387,656.80x = 21,581,485.20 × 12,540,079.20
  4. Step 4: Simplify right side
    14,387,656.80x = 270,633,533,661,627.81
  5. Step 5: Solve for x
    x = 270,633,533,661,627.81/14,387,656.80
  6. Step 6: Final answer
    x = 18,810,118.80

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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.