Home / 12,069,085.80-18,080,009.10-7,262,497.20

Finding the Fourth Proportional to 12,069,085.80, 18,080,009.10 and 7,262,497.20

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Solution

The fourth proportional to 12,069,085.80, 18,080,009.10 and 7,262,497.20 is: 10,879,532.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,069,085.80 : 18,080,009.10 = 7,262,497.20 : x
  2. Step 2: Convert to fraction form
    12,069,085.80/18,080,009.10 = 7,262,497.20/x
  3. Step 3: Cross multiply
    12,069,085.80x = 18,080,009.10 × 7,262,497.20
  4. Step 4: Simplify right side
    12,069,085.80x = 131,306,015,464,724.53
  5. Step 5: Solve for x
    x = 131,306,015,464,724.53/12,069,085.80
  6. Step 6: Final answer
    x = 10,879,532.85

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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.