Home / 20,356,355.80-30,531,326.10-16,920,160.84

Finding the Fourth Proportional to 20,356,355.80, 30,531,326.10 and 16,920,160.84

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Solution

The fourth proportional to 20,356,355.80, 30,531,326.10 and 16,920,160.84 is: 25,377,575.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,356,355.80 : 30,531,326.10 = 16,920,160.84 : x
  2. Step 2: Convert to fraction form
    20,356,355.80/30,531,326.10 = 16,920,160.84/x
  3. Step 3: Cross multiply
    20,356,355.80x = 30,531,326.10 × 16,920,160.84
  4. Step 4: Simplify right side
    20,356,355.80x = 516,594,948,270,489.94
  5. Step 5: Solve for x
    x = 516,594,948,270,489.94/20,356,355.80
  6. Step 6: Final answer
    x = 25,377,575.11

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.