Home / 9,131,876.21-12,601,342.73-5,210,713.55

Finding the Fourth Proportional to 9,131,876.21, 12,601,342.73 and 5,210,713.55

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Solution

The fourth proportional to 9,131,876.21, 12,601,342.73 and 5,210,713.55 is: 7,190,415.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,131,876.21 : 12,601,342.73 = 5,210,713.55 : x
  2. Step 2: Convert to fraction form
    9,131,876.21/12,601,342.73 = 5,210,713.55/x
  3. Step 3: Cross multiply
    9,131,876.21x = 12,601,342.73 × 5,210,713.55
  4. Step 4: Simplify right side
    9,131,876.21x = 65,661,987,311,404.99
  5. Step 5: Solve for x
    x = 65,661,987,311,404.99/9,131,876.21
  6. Step 6: Final answer
    x = 7,190,415.84

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.