Home / 20,159,389.70-30,239,084.55-12,097,232.90

Finding the Fourth Proportional to 20,159,389.70, 30,239,084.55 and 12,097,232.90

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Solution

The fourth proportional to 20,159,389.70, 30,239,084.55 and 12,097,232.90 is: 18,145,849.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,159,389.70 : 30,239,084.55 = 12,097,232.90 : x
  2. Step 2: Convert to fraction form
    20,159,389.70/30,239,084.55 = 12,097,232.90/x
  3. Step 3: Cross multiply
    20,159,389.70x = 30,239,084.55 × 12,097,232.90
  4. Step 4: Simplify right side
    20,159,389.70x = 365,809,248,484,141.69
  5. Step 5: Solve for x
    x = 365,809,248,484,141.69/20,159,389.70
  6. Step 6: Final answer
    x = 18,145,849.35

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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.