Home / 18,792,127.20-28,190,815.20-8,009,342.40

Finding the Fourth Proportional to 18,792,127.20, 28,190,815.20 and 8,009,342.40

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Solution

The fourth proportional to 18,792,127.20, 28,190,815.20 and 8,009,342.40 is: 12,015,132.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,792,127.20 : 28,190,815.20 = 8,009,342.40 : x
  2. Step 2: Convert to fraction form
    18,792,127.20/28,190,815.20 = 8,009,342.40/x
  3. Step 3: Cross multiply
    18,792,127.20x = 28,190,815.20 × 8,009,342.40
  4. Step 4: Simplify right side
    18,792,127.20x = 225,789,891,471,924.50
  5. Step 5: Solve for x
    x = 225,789,891,471,924.50/18,792,127.20
  6. Step 6: Final answer
    x = 12,015,132.14

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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.