Home / 20,662,461.96-28,553,524.18-15,496,855.44

Finding the Fourth Proportional to 20,662,461.96, 28,553,524.18 and 15,496,855.44

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Solution

The fourth proportional to 20,662,461.96, 28,553,524.18 and 15,496,855.44 is: 21,415,155.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,662,461.96 : 28,553,524.18 = 15,496,855.44 : x
  2. Step 2: Convert to fraction form
    20,662,461.96/28,553,524.18 = 15,496,855.44/x
  3. Step 3: Cross multiply
    20,662,461.96x = 28,553,524.18 × 15,496,855.44
  4. Step 4: Simplify right side
    20,662,461.96x = 442,489,836,520,004.50
  5. Step 5: Solve for x
    x = 442,489,836,520,004.50/20,662,461.96
  6. Step 6: Final answer
    x = 21,415,155.53

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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.