Home / 12,296,491.80-18,444,737.70-12,128,530.20

Finding the Fourth Proportional to 12,296,491.80, 18,444,737.70 and 12,128,530.20

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Solution

The fourth proportional to 12,296,491.80, 18,444,737.70 and 12,128,530.20 is: 18,192,795.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,296,491.80 : 18,444,737.70 = 12,128,530.20 : x
  2. Step 2: Convert to fraction form
    12,296,491.80/18,444,737.70 = 12,128,530.20/x
  3. Step 3: Cross multiply
    12,296,491.80x = 18,444,737.70 × 12,128,530.20
  4. Step 4: Simplify right side
    12,296,491.80x = 223,707,558,225,528.53
  5. Step 5: Solve for x
    x = 223,707,558,225,528.53/12,296,491.80
  6. Step 6: Final answer
    x = 18,192,795.30

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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.