Home / 212,188,043.70-318,282,065.55-202,143,808.80

Finding the Fourth Proportional to 212,188,043.70, 318,282,065.55 and 202,143,808.80

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Solution

The fourth proportional to 212,188,043.70, 318,282,065.55 and 202,143,808.80 is: 303,215,713.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,188,043.70 : 318,282,065.55 = 202,143,808.80 : x
  2. Step 2: Convert to fraction form
    212,188,043.70/318,282,065.55 = 202,143,808.80/x
  3. Step 3: Cross multiply
    212,188,043.70x = 318,282,065.55 × 202,143,808.80
  4. Step 4: Simplify right side
    212,188,043.70x = 64,338,749,003,008,272
  5. Step 5: Solve for x
    x = 64,338,749,003,008,272/212,188,043.70
  6. Step 6: Final answer
    x = 303,215,713.20

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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.