Home / 7,772,963.12-11,660,939.14-2,980,278.61

Finding the Fourth Proportional to 7,772,963.12, 11,660,939.14 and 2,980,278.61

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Solution

The fourth proportional to 7,772,963.12, 11,660,939.14 and 2,980,278.61 is: 4,470,990.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,772,963.12 : 11,660,939.14 = 2,980,278.61 : x
  2. Step 2: Convert to fraction form
    7,772,963.12/11,660,939.14 = 2,980,278.61/x
  3. Step 3: Cross multiply
    7,772,963.12x = 11,660,939.14 × 2,980,278.61
  4. Step 4: Simplify right side
    7,772,963.12x = 34,752,847,460,438.77
  5. Step 5: Solve for x
    x = 34,752,847,460,438.77/7,772,963.12
  6. Step 6: Final answer
    x = 4,470,990.91

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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.