Home / 7,890,223.80-11,835,335.70-2,840,878.20

Finding the Fourth Proportional to 7,890,223.80, 11,835,335.70 and 2,840,878.20

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Solution

The fourth proportional to 7,890,223.80, 11,835,335.70 and 2,840,878.20 is: 4,261,317.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,890,223.80 : 11,835,335.70 = 2,840,878.20 : x
  2. Step 2: Convert to fraction form
    7,890,223.80/11,835,335.70 = 2,840,878.20/x
  3. Step 3: Cross multiply
    7,890,223.80x = 11,835,335.70 × 2,840,878.20
  4. Step 4: Simplify right side
    7,890,223.80x = 33,622,747,179,811.74
  5. Step 5: Solve for x
    x = 33,622,747,179,811.74/7,890,223.80
  6. Step 6: Final answer
    x = 4,261,317.30

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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.