Home / 20,186,237.70-30,279,356.55-12,124,080.90

Finding the Fourth Proportional to 20,186,237.70, 30,279,356.55 and 12,124,080.90

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Solution

The fourth proportional to 20,186,237.70, 30,279,356.55 and 12,124,080.90 is: 18,186,121.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,186,237.70 : 30,279,356.55 = 12,124,080.90 : x
  2. Step 2: Convert to fraction form
    20,186,237.70/30,279,356.55 = 12,124,080.90/x
  3. Step 3: Cross multiply
    20,186,237.70x = 30,279,356.55 × 12,124,080.90
  4. Step 4: Simplify right side
    20,186,237.70x = 367,109,368,412,144.94
  5. Step 5: Solve for x
    x = 367,109,368,412,144.94/20,186,237.70
  6. Step 6: Final answer
    x = 18,186,121.35

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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.