Home / 7,777,808.40-11,666,712.60-5,090,422.80

Finding the Fourth Proportional to 7,777,808.40, 11,666,712.60 and 5,090,422.80

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Solution

The fourth proportional to 7,777,808.40, 11,666,712.60 and 5,090,422.80 is: 7,635,634.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,777,808.40 : 11,666,712.60 = 5,090,422.80 : x
  2. Step 2: Convert to fraction form
    7,777,808.40/11,666,712.60 = 5,090,422.80/x
  3. Step 3: Cross multiply
    7,777,808.40x = 11,666,712.60 × 5,090,422.80
  4. Step 4: Simplify right side
    7,777,808.40x = 59,388,499,820,087.27
  5. Step 5: Solve for x
    x = 59,388,499,820,087.27/7,777,808.40
  6. Step 6: Final answer
    x = 7,635,634.20

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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.