Home / 12,137,079.30-18,202,994.55-5,313,639.30

Finding the Fourth Proportional to 12,137,079.30, 18,202,994.55 and 5,313,639.30

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Solution

The fourth proportional to 12,137,079.30, 18,202,994.55 and 5,313,639.30 is: 7,969,309.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,137,079.30 : 18,202,994.55 = 5,313,639.30 : x
  2. Step 2: Convert to fraction form
    12,137,079.30/18,202,994.55 = 5,313,639.30/x
  3. Step 3: Cross multiply
    12,137,079.30x = 18,202,994.55 × 5,313,639.30
  4. Step 4: Simplify right side
    12,137,079.30x = 96,724,147,218,565.81
  5. Step 5: Solve for x
    x = 96,724,147,218,565.81/12,137,079.30
  6. Step 6: Final answer
    x = 7,969,309.98

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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.