Home / 20,727,891.04-31,095,821.76-7,947,398.98

Finding the Fourth Proportional to 20,727,891.04, 31,095,821.76 and 7,947,398.98

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Solution

The fourth proportional to 20,727,891.04, 31,095,821.76 and 7,947,398.98 is: 11,922,626.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,727,891.04 : 31,095,821.76 = 7,947,398.98 : x
  2. Step 2: Convert to fraction form
    20,727,891.04/31,095,821.76 = 7,947,398.98/x
  3. Step 3: Cross multiply
    20,727,891.04x = 31,095,821.76 × 7,947,398.98
  4. Step 4: Simplify right side
    20,727,891.04x = 247,130,902,137,685.84
  5. Step 5: Solve for x
    x = 247,130,902,137,685.84/20,727,891.04
  6. Step 6: Final answer
    x = 11,922,626.46

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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.