Home / 20,120,823.45-30,181,235.18-7,337,079.45

Finding the Fourth Proportional to 20,120,823.45, 30,181,235.18 and 7,337,079.45

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Solution

The fourth proportional to 20,120,823.45, 30,181,235.18 and 7,337,079.45 is: 11,005,619.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,120,823.45 : 30,181,235.18 = 7,337,079.45 : x
  2. Step 2: Convert to fraction form
    20,120,823.45/30,181,235.18 = 7,337,079.45/x
  3. Step 3: Cross multiply
    20,120,823.45x = 30,181,235.18 × 7,337,079.45
  4. Step 4: Simplify right side
    20,120,823.45x = 221,442,120,378,109.66
  5. Step 5: Solve for x
    x = 221,442,120,378,109.66/20,120,823.45
  6. Step 6: Final answer
    x = 11,005,619.18

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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.