Home / 20,998,213.70-31,497,320.55-5,852,145.20

Finding the Fourth Proportional to 20,998,213.70, 31,497,320.55 and 5,852,145.20

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Solution

The fourth proportional to 20,998,213.70, 31,497,320.55 and 5,852,145.20 is: 8,778,217.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,998,213.70 : 31,497,320.55 = 5,852,145.20 : x
  2. Step 2: Convert to fraction form
    20,998,213.70/31,497,320.55 = 5,852,145.20/x
  3. Step 3: Cross multiply
    20,998,213.70x = 31,497,320.55 × 5,852,145.20
  4. Step 4: Simplify right side
    20,998,213.70x = 184,326,893,269,543.88
  5. Step 5: Solve for x
    x = 184,326,893,269,543.88/20,998,213.70
  6. Step 6: Final answer
    x = 8,778,217.80

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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.