Home / 6,438,670.97-8,876,487.43-5,136,343.22

Finding the Fourth Proportional to 6,438,670.97, 8,876,487.43 and 5,136,343.22

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Solution

The fourth proportional to 6,438,670.97, 8,876,487.43 and 5,136,343.22 is: 7,081,070.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,438,670.97 : 8,876,487.43 = 5,136,343.22 : x
  2. Step 2: Convert to fraction form
    6,438,670.97/8,876,487.43 = 5,136,343.22/x
  3. Step 3: Cross multiply
    6,438,670.97x = 8,876,487.43 × 5,136,343.22
  4. Step 4: Simplify right side
    6,438,670.97x = 45,592,686,057,107.38
  5. Step 5: Solve for x
    x = 45,592,686,057,107.38/6,438,670.97
  6. Step 6: Final answer
    x = 7,081,070.97

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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.