Home / 12,393,005.70-18,589,508.55-8,991,783.30

Finding the Fourth Proportional to 12,393,005.70, 18,589,508.55 and 8,991,783.30

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Solution

The fourth proportional to 12,393,005.70, 18,589,508.55 and 8,991,783.30 is: 13,487,674.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,393,005.70 : 18,589,508.55 = 8,991,783.30 : x
  2. Step 2: Convert to fraction form
    12,393,005.70/18,589,508.55 = 8,991,783.30/x
  3. Step 3: Cross multiply
    12,393,005.70x = 18,589,508.55 × 8,991,783.30
  4. Step 4: Simplify right side
    12,393,005.70x = 167,152,832,535,097.25
  5. Step 5: Solve for x
    x = 167,152,832,535,097.25/12,393,005.70
  6. Step 6: Final answer
    x = 13,487,674.95

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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.