Home / 7,680,599.40-11,520,857.52-3,131,630.58

Finding the Fourth Proportional to 7,680,599.40, 11,520,857.52 and 3,131,630.58

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Solution

The fourth proportional to 7,680,599.40, 11,520,857.52 and 3,131,630.58 is: 4,697,428.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,680,599.40 : 11,520,857.52 = 3,131,630.58 : x
  2. Step 2: Convert to fraction form
    7,680,599.40/11,520,857.52 = 3,131,630.58/x
  3. Step 3: Cross multiply
    7,680,599.40x = 11,520,857.52 × 3,131,630.58
  4. Step 4: Simplify right side
    7,680,599.40x = 36,079,069,717,454.96
  5. Step 5: Solve for x
    x = 36,079,069,717,454.96/7,680,599.40
  6. Step 6: Final answer
    x = 4,697,428.92

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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.