Home / 12,212,231.67-18,318,410.69-7,159,999.23

Finding the Fourth Proportional to 12,212,231.67, 18,318,410.69 and 7,159,999.23

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Solution

The fourth proportional to 12,212,231.67, 18,318,410.69 and 7,159,999.23 is: 10,740,035.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,212,231.67 : 18,318,410.69 = 7,159,999.23 : x
  2. Step 2: Convert to fraction form
    12,212,231.67/18,318,410.69 = 7,159,999.23/x
  3. Step 3: Cross multiply
    12,212,231.67x = 18,318,410.69 × 7,159,999.23
  4. Step 4: Simplify right side
    12,212,231.67x = 131,159,806,399,423.77
  5. Step 5: Solve for x
    x = 131,159,806,399,423.77/12,212,231.67
  6. Step 6: Final answer
    x = 10,740,035.89

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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.