Home / 212,188,045.20-318,282,067.80-202,143,810.30

Finding the Fourth Proportional to 212,188,045.20, 318,282,067.80 and 202,143,810.30

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Solution

The fourth proportional to 212,188,045.20, 318,282,067.80 and 202,143,810.30 is: 303,215,715.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,188,045.20 : 318,282,067.80 = 202,143,810.30 : x
  2. Step 2: Convert to fraction form
    212,188,045.20/318,282,067.80 = 202,143,810.30/x
  3. Step 3: Cross multiply
    212,188,045.20x = 318,282,067.80 × 202,143,810.30
  4. Step 4: Simplify right side
    212,188,045.20x = 64,338,749,935,254,944
  5. Step 5: Solve for x
    x = 64,338,749,935,254,944/212,188,045.20
  6. Step 6: Final answer
    x = 303,215,715.45

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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.