Home / 20,727,901.67-31,095,837.71-7,947,409.62

Finding the Fourth Proportional to 20,727,901.67, 31,095,837.71 and 7,947,409.62

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Solution

The fourth proportional to 20,727,901.67, 31,095,837.71 and 7,947,409.62 is: 11,922,642.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,727,901.67 : 31,095,837.71 = 7,947,409.62 : x
  2. Step 2: Convert to fraction form
    20,727,901.67/31,095,837.71 = 7,947,409.62/x
  3. Step 3: Cross multiply
    20,727,901.67x = 31,095,837.71 × 7,947,409.62
  4. Step 4: Simplify right side
    20,727,901.67x = 247,131,359,718,675.72
  5. Step 5: Solve for x
    x = 247,131,359,718,675.72/20,727,901.67
  6. Step 6: Final answer
    x = 11,922,642.42

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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.