Home / 19,188,052.80-28,778,926.55-6,889,470.18

Finding the Fourth Proportional to 19,188,052.80, 28,778,926.55 and 6,889,470.18

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Solution

The fourth proportional to 19,188,052.80, 28,778,926.55 and 6,889,470.18 is: 10,333,073.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,188,052.80 : 28,778,926.55 = 6,889,470.18 : x
  2. Step 2: Convert to fraction form
    19,188,052.80/28,778,926.55 = 6,889,470.18/x
  3. Step 3: Cross multiply
    19,188,052.80x = 28,778,926.55 × 6,889,470.18
  4. Step 4: Simplify right side
    19,188,052.80x = 198,271,556,244,187.94
  5. Step 5: Solve for x
    x = 198,271,556,244,187.94/19,188,052.80
  6. Step 6: Final answer
    x = 10,333,073.31

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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.