Home / 7,775,991.40-11,663,987.10-4,920,644.20

Finding the Fourth Proportional to 7,775,991.40, 11,663,987.10 and 4,920,644.20

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Solution

The fourth proportional to 7,775,991.40, 11,663,987.10 and 4,920,644.20 is: 7,380,966.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,775,991.40 : 11,663,987.10 = 4,920,644.20 : x
  2. Step 2: Convert to fraction form
    7,775,991.40/11,663,987.10 = 4,920,644.20/x
  3. Step 3: Cross multiply
    7,775,991.40x = 11,663,987.10 × 4,920,644.20
  4. Step 4: Simplify right side
    7,775,991.40x = 57,394,330,472,489.82
  5. Step 5: Solve for x
    x = 57,394,330,472,489.82/7,775,991.40
  6. Step 6: Final answer
    x = 7,380,966.30

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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.