Home / 7,870,891.34-11,812,635.58-4,085,456.78

Finding the Fourth Proportional to 7,870,891.34, 11,812,635.58 and 4,085,456.78

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Solution

The fourth proportional to 7,870,891.34, 11,812,635.58 and 4,085,456.78 is: 6,131,454.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,870,891.34 : 11,812,635.58 = 4,085,456.78 : x
  2. Step 2: Convert to fraction form
    7,870,891.34/11,812,635.58 = 4,085,456.78/x
  3. Step 3: Cross multiply
    7,870,891.34x = 11,812,635.58 × 4,085,456.78
  4. Step 4: Simplify right side
    7,870,891.34x = 48,260,012,119,980.23
  5. Step 5: Solve for x
    x = 48,260,012,119,980.23/7,870,891.34
  6. Step 6: Final answer
    x = 6,131,454.50

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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.