Home / 18,692,942.10-28,039,413.15-8,615,246.10

Finding the Fourth Proportional to 18,692,942.10, 28,039,413.15 and 8,615,246.10

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Solution

The fourth proportional to 18,692,942.10, 28,039,413.15 and 8,615,246.10 is: 12,922,869.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,692,942.10 : 28,039,413.15 = 8,615,246.10 : x
  2. Step 2: Convert to fraction form
    18,692,942.10/28,039,413.15 = 8,615,246.10/x
  3. Step 3: Cross multiply
    18,692,942.10x = 28,039,413.15 × 8,615,246.10
  4. Step 4: Simplify right side
    18,692,942.10x = 241,566,444,786,826.19
  5. Step 5: Solve for x
    x = 241,566,444,786,826.19/18,692,942.10
  6. Step 6: Final answer
    x = 12,922,869.15

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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.