Home / 14,489,428.80-21,720,319.20-5,389,089.60

Finding the Fourth Proportional to 14,489,428.80, 21,720,319.20 and 5,389,089.60

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Solution

The fourth proportional to 14,489,428.80, 21,720,319.20 and 5,389,089.60 is: 8,078,492.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,489,428.80 : 21,720,319.20 = 5,389,089.60 : x
  2. Step 2: Convert to fraction form
    14,489,428.80/21,720,319.20 = 5,389,089.60/x
  3. Step 3: Cross multiply
    14,489,428.80x = 21,720,319.20 × 5,389,089.60
  4. Step 4: Simplify right side
    14,489,428.80x = 117,052,746,309,400.31
  5. Step 5: Solve for x
    x = 117,052,746,309,400.31/14,489,428.80
  6. Step 6: Final answer
    x = 8,078,492.81

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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.