Home / 12,185,415.20-18,170,726.86-12,076,137.70

Finding the Fourth Proportional to 12,185,415.20, 18,170,726.86 and 12,076,137.70

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Solution

The fourth proportional to 12,185,415.20, 18,170,726.86 and 12,076,137.70 is: 18,007,773.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,185,415.20 : 18,170,726.86 = 12,076,137.70 : x
  2. Step 2: Convert to fraction form
    12,185,415.20/18,170,726.86 = 12,076,137.70/x
  3. Step 3: Cross multiply
    12,185,415.20x = 18,170,726.86 × 12,076,137.70
  4. Step 4: Simplify right side
    12,185,415.20x = 219,432,199,572,188.69
  5. Step 5: Solve for x
    x = 219,432,199,572,188.69/12,185,415.20
  6. Step 6: Final answer
    x = 18,007,773.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.