Home / 381,940,633.60-527,070,936-212,405,268.40

Finding the Fourth Proportional to 381,940,633.60, 527,070,936 and 212,405,268.40

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Solution

The fourth proportional to 381,940,633.60, 527,070,936 and 212,405,268.40 is: 293,115,300.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,940,633.60 : 527,070,936 = 212,405,268.40 : x
  2. Step 2: Convert to fraction form
    381,940,633.60/527,070,936 = 212,405,268.40/x
  3. Step 3: Cross multiply
    381,940,633.60x = 527,070,936 × 212,405,268.40
  4. Step 4: Simplify right side
    381,940,633.60x = 111,952,643,626,919,232
  5. Step 5: Solve for x
    x = 111,952,643,626,919,232/381,940,633.60
  6. Step 6: Final answer
    x = 293,115,300.59

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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.