Home / 12,161,664.32-18,242,963.04-5,430,136.64

Finding the Fourth Proportional to 12,161,664.32, 18,242,963.04 and 5,430,136.64

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Solution

The fourth proportional to 12,161,664.32, 18,242,963.04 and 5,430,136.64 is: 8,145,413.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,161,664.32 : 18,242,963.04 = 5,430,136.64 : x
  2. Step 2: Convert to fraction form
    12,161,664.32/18,242,963.04 = 5,430,136.64/x
  3. Step 3: Cross multiply
    12,161,664.32x = 18,242,963.04 × 5,430,136.64
  4. Step 4: Simplify right side
    12,161,664.32x = 99,061,782,025,669.78
  5. Step 5: Solve for x
    x = 99,061,782,025,669.78/12,161,664.32
  6. Step 6: Final answer
    x = 8,145,413.28

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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.