Home / 13,420,526.14-18,520,850.46-7,619,847.58

Finding the Fourth Proportional to 13,420,526.14, 18,520,850.46 and 7,619,847.58

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Solution

The fourth proportional to 13,420,526.14, 18,520,850.46 and 7,619,847.58 is: 10,515,687.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,420,526.14 : 18,520,850.46 = 7,619,847.58 : x
  2. Step 2: Convert to fraction form
    13,420,526.14/18,520,850.46 = 7,619,847.58/x
  3. Step 3: Cross multiply
    13,420,526.14x = 18,520,850.46 × 7,619,847.58
  4. Step 4: Simplify right side
    13,420,526.14x = 141,126,057,557,172.91
  5. Step 5: Solve for x
    x = 141,126,057,557,172.91/13,420,526.14
  6. Step 6: Final answer
    x = 10,515,687.39

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1.5x scale

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.