Home / 288,024,918.82-397,474,375.74-155,865,919.44

Finding the Fourth Proportional to 288,024,918.82, 397,474,375.74 and 155,865,919.44

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Solution

The fourth proportional to 288,024,918.82, 397,474,375.74 and 155,865,919.44 is: 215,094,962.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,024,918.82 : 397,474,375.74 = 155,865,919.44 : x
  2. Step 2: Convert to fraction form
    288,024,918.82/397,474,375.74 = 155,865,919.44/x
  3. Step 3: Cross multiply
    288,024,918.82x = 397,474,375.74 × 155,865,919.44
  4. Step 4: Simplify right side
    288,024,918.82x = 61,952,709,028,555,128
  5. Step 5: Solve for x
    x = 61,952,709,028,555,128/288,024,918.82
  6. Step 6: Final answer
    x = 215,094,962.21

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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.