Home / 12,069,065.80-18,079,979.10-7,262,477.20

Finding the Fourth Proportional to 12,069,065.80, 18,079,979.10 and 7,262,477.20

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Solution

The fourth proportional to 12,069,065.80, 18,079,979.10 and 7,262,477.20 is: 10,879,502.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,069,065.80 : 18,079,979.10 = 7,262,477.20 : x
  2. Step 2: Convert to fraction form
    12,069,065.80/18,079,979.10 = 7,262,477.20/x
  3. Step 3: Cross multiply
    12,069,065.80x = 18,079,979.10 × 7,262,477.20
  4. Step 4: Simplify right side
    12,069,065.80x = 131,305,435,990,226.53
  5. Step 5: Solve for x
    x = 131,305,435,990,226.53/12,069,065.80
  6. Step 6: Final answer
    x = 10,879,502.87

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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.