Home / 20,260,542.40-30,365,008.80-8,279,742.40

Finding the Fourth Proportional to 20,260,542.40, 30,365,008.80 and 8,279,742.40

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Solution

The fourth proportional to 20,260,542.40, 30,365,008.80 and 8,279,742.40 is: 12,409,068.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,260,542.40 : 30,365,008.80 = 8,279,742.40 : x
  2. Step 2: Convert to fraction form
    20,260,542.40/30,365,008.80 = 8,279,742.40/x
  3. Step 3: Cross multiply
    20,260,542.40x = 30,365,008.80 × 8,279,742.40
  4. Step 4: Simplify right side
    20,260,542.40x = 251,414,450,837,733.12
  5. Step 5: Solve for x
    x = 251,414,450,837,733.12/20,260,542.40
  6. Step 6: Final answer
    x = 12,409,068.12

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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.