Home / 20,186,135.40-30,279,203.10-9,424,455.15

Finding the Fourth Proportional to 20,186,135.40, 30,279,203.10 and 9,424,455.15

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Solution

The fourth proportional to 20,186,135.40, 30,279,203.10 and 9,424,455.15 is: 14,136,682.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,186,135.40 : 30,279,203.10 = 9,424,455.15 : x
  2. Step 2: Convert to fraction form
    20,186,135.40/30,279,203.10 = 9,424,455.15/x
  3. Step 3: Cross multiply
    20,186,135.40x = 30,279,203.10 × 9,424,455.15
  4. Step 4: Simplify right side
    20,186,135.40x = 285,364,991,593,691
  5. Step 5: Solve for x
    x = 285,364,991,593,691/20,186,135.40
  6. Step 6: Final answer
    x = 14,136,682.73

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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.