Home / 12,076,616.50-16,665,730.77-6,643,991.86

Finding the Fourth Proportional to 12,076,616.50, 16,665,730.77 and 6,643,991.86

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Solution

The fourth proportional to 12,076,616.50, 16,665,730.77 and 6,643,991.86 is: 9,168,708.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,076,616.50 : 16,665,730.77 = 6,643,991.86 : x
  2. Step 2: Convert to fraction form
    12,076,616.50/16,665,730.77 = 6,643,991.86/x
  3. Step 3: Cross multiply
    12,076,616.50x = 16,665,730.77 × 6,643,991.86
  4. Step 4: Simplify right side
    12,076,616.50x = 110,726,979,576,831.53
  5. Step 5: Solve for x
    x = 110,726,979,576,831.53/12,076,616.50
  6. Step 6: Final answer
    x = 9,168,708.77

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.