Home / 20,210,062.10-30,315,093.15-7,428,906.05

Finding the Fourth Proportional to 20,210,062.10, 30,315,093.15 and 7,428,906.05

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Solution

The fourth proportional to 20,210,062.10, 30,315,093.15 and 7,428,906.05 is: 11,143,359.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,210,062.10 : 30,315,093.15 = 7,428,906.05 : x
  2. Step 2: Convert to fraction form
    20,210,062.10/30,315,093.15 = 7,428,906.05/x
  3. Step 3: Cross multiply
    20,210,062.10x = 30,315,093.15 × 7,428,906.05
  4. Step 4: Simplify right side
    20,210,062.10x = 225,207,978,908,348.53
  5. Step 5: Solve for x
    x = 225,207,978,908,348.53/20,210,062.10
  6. Step 6: Final answer
    x = 11,143,359.08

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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.