Home / 12,095,412.70-18,143,119.05-9,072,103.90

Finding the Fourth Proportional to 12,095,412.70, 18,143,119.05 and 9,072,103.90

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Solution

The fourth proportional to 12,095,412.70, 18,143,119.05 and 9,072,103.90 is: 13,608,155.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,095,412.70 : 18,143,119.05 = 9,072,103.90 : x
  2. Step 2: Convert to fraction form
    12,095,412.70/18,143,119.05 = 9,072,103.90/x
  3. Step 3: Cross multiply
    12,095,412.70x = 18,143,119.05 × 9,072,103.90
  4. Step 4: Simplify right side
    12,095,412.70x = 164,596,261,091,669.31
  5. Step 5: Solve for x
    x = 164,596,261,091,669.31/12,095,412.70
  6. Step 6: Final answer
    x = 13,608,155.85

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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.