Home / 12,097,209.20-18,145,813.80-9,997,689.20

Finding the Fourth Proportional to 12,097,209.20, 18,145,813.80 and 9,997,689.20

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Solution

The fourth proportional to 12,097,209.20, 18,145,813.80 and 9,997,689.20 is: 14,996,533.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,097,209.20 : 18,145,813.80 = 9,997,689.20 : x
  2. Step 2: Convert to fraction form
    12,097,209.20/18,145,813.80 = 9,997,689.20/x
  3. Step 3: Cross multiply
    12,097,209.20x = 18,145,813.80 × 9,997,689.20
  4. Step 4: Simplify right side
    12,097,209.20x = 181,416,206,653,470.97
  5. Step 5: Solve for x
    x = 181,416,206,653,470.97/12,097,209.20
  6. Step 6: Final answer
    x = 14,996,533.80

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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.