Home / 12,185,416.27-18,170,728.44-12,076,138.76

Finding the Fourth Proportional to 12,185,416.27, 18,170,728.44 and 12,076,138.76

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Solution

The fourth proportional to 12,185,416.27, 18,170,728.44 and 12,076,138.76 is: 18,007,775.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,185,416.27 : 18,170,728.44 = 12,076,138.76 : x
  2. Step 2: Convert to fraction form
    12,185,416.27/18,170,728.44 = 12,076,138.76/x
  3. Step 3: Cross multiply
    12,185,416.27x = 18,170,728.44 × 12,076,138.76
  4. Step 4: Simplify right side
    12,185,416.27x = 219,432,238,011,718.34
  5. Step 5: Solve for x
    x = 219,432,238,011,718.34/12,185,416.27
  6. Step 6: Final answer
    x = 18,007,775.29

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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.