Home / 20,727,980.54-31,095,956.07-7,947,488.54

Finding the Fourth Proportional to 20,727,980.54, 31,095,956.07 and 7,947,488.54

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Solution

The fourth proportional to 20,727,980.54, 31,095,956.07 and 7,947,488.54 is: 11,922,760.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,727,980.54 : 31,095,956.07 = 7,947,488.54 : x
  2. Step 2: Convert to fraction form
    20,727,980.54/31,095,956.07 = 7,947,488.54/x
  3. Step 3: Cross multiply
    20,727,980.54x = 31,095,956.07 × 7,947,488.54
  4. Step 4: Simplify right side
    20,727,980.54x = 247,134,754,506,668.44
  5. Step 5: Solve for x
    x = 247,134,754,506,668.44/20,727,980.54
  6. Step 6: Final answer
    x = 11,922,760.83

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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.