Home / 20,120,855.70-30,181,283.55-7,337,111.70

Finding the Fourth Proportional to 20,120,855.70, 30,181,283.55 and 7,337,111.70

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Solution

The fourth proportional to 20,120,855.70, 30,181,283.55 and 7,337,111.70 is: 11,005,667.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,120,855.70 : 30,181,283.55 = 7,337,111.70 : x
  2. Step 2: Convert to fraction form
    20,120,855.70/30,181,283.55 = 7,337,111.70/x
  3. Step 3: Cross multiply
    20,120,855.70x = 30,181,283.55 × 7,337,111.70
  4. Step 4: Simplify right side
    20,120,855.70x = 221,443,448,655,722.53
  5. Step 5: Solve for x
    x = 221,443,448,655,722.53/20,120,855.70
  6. Step 6: Final answer
    x = 11,005,667.55

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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.