Home / 20,186,205.40-30,279,308.10-9,424,525.15

Finding the Fourth Proportional to 20,186,205.40, 30,279,308.10 and 9,424,525.15

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Solution

The fourth proportional to 20,186,205.40, 30,279,308.10 and 9,424,525.15 is: 14,136,787.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,186,205.40 : 30,279,308.10 = 9,424,525.15 : x
  2. Step 2: Convert to fraction form
    20,186,205.40/30,279,308.10 = 9,424,525.15/x
  3. Step 3: Cross multiply
    20,186,205.40x = 30,279,308.10 × 9,424,525.15
  4. Step 4: Simplify right side
    20,186,205.40x = 285,368,100,713,048.75
  5. Step 5: Solve for x
    x = 285,368,100,713,048.75/20,186,205.40
  6. Step 6: Final answer
    x = 14,136,787.73

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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.