Home / 213,192,691.40-319,789,037.10-197,887,190.60

Finding the Fourth Proportional to 213,192,691.40, 319,789,037.10 and 197,887,190.60

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Solution

The fourth proportional to 213,192,691.40, 319,789,037.10 and 197,887,190.60 is: 296,830,785.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,192,691.40 : 319,789,037.10 = 197,887,190.60 : x
  2. Step 2: Convert to fraction form
    213,192,691.40/319,789,037.10 = 197,887,190.60/x
  3. Step 3: Cross multiply
    213,192,691.40x = 319,789,037.10 × 197,887,190.60
  4. Step 4: Simplify right side
    213,192,691.40x = 63,282,154,136,398,176
  5. Step 5: Solve for x
    x = 63,282,154,136,398,176/213,192,691.40
  6. Step 6: Final answer
    x = 296,830,785.90

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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.