Home / 6,143,999.85-9,215,999.78-2,778,316.65

Finding the Fourth Proportional to 6,143,999.85, 9,215,999.78 and 2,778,316.65

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Solution

The fourth proportional to 6,143,999.85, 9,215,999.78 and 2,778,316.65 is: 4,167,474.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,143,999.85 : 9,215,999.78 = 2,778,316.65 : x
  2. Step 2: Convert to fraction form
    6,143,999.85/9,215,999.78 = 2,778,316.65/x
  3. Step 3: Cross multiply
    6,143,999.85x = 9,215,999.78 × 2,778,316.65
  4. Step 4: Simplify right side
    6,143,999.85x = 25,604,965,621,278.75
  5. Step 5: Solve for x
    x = 25,604,965,621,278.75/6,143,999.85
  6. Step 6: Final answer
    x = 4,167,474.98

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Double scale
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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.