Home / 7,777,506.40-11,666,259.60-5,090,120.80

Finding the Fourth Proportional to 7,777,506.40, 11,666,259.60 and 5,090,120.80

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Solution

The fourth proportional to 7,777,506.40, 11,666,259.60 and 5,090,120.80 is: 7,635,181.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,777,506.40 : 11,666,259.60 = 5,090,120.80 : x
  2. Step 2: Convert to fraction form
    7,777,506.40/11,666,259.60 = 5,090,120.80/x
  3. Step 3: Cross multiply
    7,777,506.40x = 11,666,259.60 × 5,090,120.80
  4. Step 4: Simplify right side
    7,777,506.40x = 59,382,670,648,159.68
  5. Step 5: Solve for x
    x = 59,382,670,648,159.68/7,777,506.40
  6. Step 6: Final answer
    x = 7,635,181.20

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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.