Home / 18,661,042,542.27-28,011,483,413.76-8,042,507,142.74

Finding the Fourth Proportional to 18,661,042,542.27, 28,011,483,413.76 and 8,042,507,142.74

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Solution

The fourth proportional to 18,661,042,542.27, 28,011,483,413.76 and 8,042,507,142.74 is: 12,072,345,632.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,661,042,542.27 : 28,011,483,413.76 = 8,042,507,142.74 : x
  2. Step 2: Convert to fraction form
    18,661,042,542.27/28,011,483,413.76 = 8,042,507,142.74/x
  3. Step 3: Cross multiply
    18,661,042,542.27x = 28,011,483,413.76 × 8,042,507,142.74
  4. Step 4: Simplify right side
    18,661,042,542.27x = 225,282,555,433,767,763,968
  5. Step 5: Solve for x
    x = 225,282,555,433,767,763,968/18,661,042,542.27
  6. Step 6: Final answer
    x = 12,072,345,632.54

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1.5x scale

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.