Home / 378,397,826.64-522,190,444.38-211,141,137.42

Finding the Fourth Proportional to 378,397,826.64, 522,190,444.38 and 211,141,137.42

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Solution

The fourth proportional to 378,397,826.64, 522,190,444.38 and 211,141,137.42 is: 291,375,575.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,397,826.64 : 522,190,444.38 = 211,141,137.42 : x
  2. Step 2: Convert to fraction form
    378,397,826.64/522,190,444.38 = 211,141,137.42/x
  3. Step 3: Cross multiply
    378,397,826.64x = 522,190,444.38 × 211,141,137.42
  4. Step 4: Simplify right side
    378,397,826.64x = 110,255,884,376,248,432
  5. Step 5: Solve for x
    x = 110,255,884,376,248,432/378,397,826.64
  6. Step 6: Final answer
    x = 291,375,575.16

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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.