Home / 12,618,918.80-18,928,378.20-6,230,157.20

Finding the Fourth Proportional to 12,618,918.80, 18,928,378.20 and 6,230,157.20

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Solution

The fourth proportional to 12,618,918.80, 18,928,378.20 and 6,230,157.20 is: 9,345,235.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,618,918.80 : 18,928,378.20 = 6,230,157.20 : x
  2. Step 2: Convert to fraction form
    12,618,918.80/18,928,378.20 = 6,230,157.20/x
  3. Step 3: Cross multiply
    12,618,918.80x = 18,928,378.20 × 6,230,157.20
  4. Step 4: Simplify right side
    12,618,918.80x = 117,926,771,727,053.03
  5. Step 5: Solve for x
    x = 117,926,771,727,053.03/12,618,918.80
  6. Step 6: Final answer
    x = 9,345,235.80

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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.