Home / 20,154,310.10-30,231,465.15-6,691,138.10

Finding the Fourth Proportional to 20,154,310.10, 30,231,465.15 and 6,691,138.10

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Solution

The fourth proportional to 20,154,310.10, 30,231,465.15 and 6,691,138.10 is: 10,036,707.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,154,310.10 : 30,231,465.15 = 6,691,138.10 : x
  2. Step 2: Convert to fraction form
    20,154,310.10/30,231,465.15 = 6,691,138.10/x
  3. Step 3: Cross multiply
    20,154,310.10x = 30,231,465.15 × 6,691,138.10
  4. Step 4: Simplify right side
    20,154,310.10x = 202,282,908,283,987.19
  5. Step 5: Solve for x
    x = 202,282,908,283,987.19/20,154,310.10
  6. Step 6: Final answer
    x = 10,036,707.15

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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.