Home / 20,733,655.50-28,608,901.62-12,029,832.90

Finding the Fourth Proportional to 20,733,655.50, 28,608,901.62 and 12,029,832.90

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Solution

The fourth proportional to 20,733,655.50, 28,608,901.62 and 12,029,832.90 is: 16,599,113.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,733,655.50 : 28,608,901.62 = 12,029,832.90 : x
  2. Step 2: Convert to fraction form
    20,733,655.50/28,608,901.62 = 12,029,832.90/x
  3. Step 3: Cross multiply
    20,733,655.50x = 28,608,901.62 × 12,029,832.90
  4. Step 4: Simplify right side
    20,733,655.50x = 344,160,305,941,139.31
  5. Step 5: Solve for x
    x = 344,160,305,941,139.31/20,733,655.50
  6. Step 6: Final answer
    x = 16,599,113.74

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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.