Home / 211,388,510.25-291,722,833.29-122,078,838.89

Finding the Fourth Proportional to 211,388,510.25, 291,722,833.29 and 122,078,838.89

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Solution

The fourth proportional to 211,388,510.25, 291,722,833.29 and 122,078,838.89 is: 168,472,660.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,388,510.25 : 291,722,833.29 = 122,078,838.89 : x
  2. Step 2: Convert to fraction form
    211,388,510.25/291,722,833.29 = 122,078,838.89/x
  3. Step 3: Cross multiply
    211,388,510.25x = 291,722,833.29 × 122,078,838.89
  4. Step 4: Simplify right side
    211,388,510.25x = 35,613,184,764,285,628
  5. Step 5: Solve for x
    x = 35,613,184,764,285,628/211,388,510.25
  6. Step 6: Final answer
    x = 168,472,660.71

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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.