Home / 7,680,600.40-11,520,859.02-3,131,631.58

Finding the Fourth Proportional to 7,680,600.40, 11,520,859.02 and 3,131,631.58

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Solution

The fourth proportional to 7,680,600.40, 11,520,859.02 and 3,131,631.58 is: 4,697,430.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,680,600.40 : 11,520,859.02 = 3,131,631.58 : x
  2. Step 2: Convert to fraction form
    7,680,600.40/11,520,859.02 = 3,131,631.58/x
  3. Step 3: Cross multiply
    7,680,600.40x = 11,520,859.02 × 3,131,631.58
  4. Step 4: Simplify right side
    7,680,600.40x = 36,079,085,935,759.85
  5. Step 5: Solve for x
    x = 36,079,085,935,759.85/7,680,600.40
  6. Step 6: Final answer
    x = 4,697,430.42

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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.