Home / 12,358,809.36-18,543,330-6,672,345.84

Finding the Fourth Proportional to 12,358,809.36, 18,543,330 and 6,672,345.84

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Solution

The fourth proportional to 12,358,809.36, 18,543,330 and 6,672,345.84 is: 10,011,280.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,358,809.36 : 18,543,330 = 6,672,345.84 : x
  2. Step 2: Convert to fraction form
    12,358,809.36/18,543,330 = 6,672,345.84/x
  3. Step 3: Cross multiply
    12,358,809.36x = 18,543,330 × 6,672,345.84
  4. Step 4: Simplify right side
    12,358,809.36x = 123,727,510,785,247.20
  5. Step 5: Solve for x
    x = 123,727,510,785,247.20/12,358,809.36
  6. Step 6: Final answer
    x = 10,011,280.79

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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.