Home / 213,171,767.70-319,757,651.55-210,301,986.30

Finding the Fourth Proportional to 213,171,767.70, 319,757,651.55 and 210,301,986.30

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Solution

The fourth proportional to 213,171,767.70, 319,757,651.55 and 210,301,986.30 is: 315,452,979.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,171,767.70 : 319,757,651.55 = 210,301,986.30 : x
  2. Step 2: Convert to fraction form
    213,171,767.70/319,757,651.55 = 210,301,986.30/x
  3. Step 3: Cross multiply
    213,171,767.70x = 319,757,651.55 × 210,301,986.30
  4. Step 4: Simplify right side
    213,171,767.70x = 67,245,669,255,588,280
  5. Step 5: Solve for x
    x = 67,245,669,255,588,280/213,171,767.70
  6. Step 6: Final answer
    x = 315,452,979.45

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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.