Home / 12,208,277.20-18,312,415.80-9,382,651.60

Finding the Fourth Proportional to 12,208,277.20, 18,312,415.80 and 9,382,651.60

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Solution

The fourth proportional to 12,208,277.20, 18,312,415.80 and 9,382,651.60 is: 14,073,977.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,208,277.20 : 18,312,415.80 = 9,382,651.60 : x
  2. Step 2: Convert to fraction form
    12,208,277.20/18,312,415.80 = 9,382,651.60/x
  3. Step 3: Cross multiply
    12,208,277.20x = 18,312,415.80 × 9,382,651.60
  4. Step 4: Simplify right side
    12,208,277.20x = 171,819,017,405,735.28
  5. Step 5: Solve for x
    x = 171,819,017,405,735.28/12,208,277.20
  6. Step 6: Final answer
    x = 14,073,977.40

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Similar ratio
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1.5x scale

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.