Home / 20,148,321.90-30,222,482.85-18,384,725.10

Finding the Fourth Proportional to 20,148,321.90, 30,222,482.85 and 18,384,725.10

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Solution

The fourth proportional to 20,148,321.90, 30,222,482.85 and 18,384,725.10 is: 27,577,087.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,148,321.90 : 30,222,482.85 = 18,384,725.10 : x
  2. Step 2: Convert to fraction form
    20,148,321.90/30,222,482.85 = 18,384,725.10/x
  3. Step 3: Cross multiply
    20,148,321.90x = 30,222,482.85 × 18,384,725.10
  4. Step 4: Simplify right side
    20,148,321.90x = 555,632,039,036,714.62
  5. Step 5: Solve for x
    x = 555,632,039,036,714.62/20,148,321.90
  6. Step 6: Final answer
    x = 27,577,087.65

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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.