Home / 211,782,128.45-292,168,679.68-132,259,131.17

Finding the Fourth Proportional to 211,782,128.45, 292,168,679.68 and 132,259,131.17

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Solution

The fourth proportional to 211,782,128.45, 292,168,679.68 and 132,259,131.17 is: 182,460,984.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,782,128.45 : 292,168,679.68 = 132,259,131.17 : x
  2. Step 2: Convert to fraction form
    211,782,128.45/292,168,679.68 = 132,259,131.17/x
  3. Step 3: Cross multiply
    211,782,128.45x = 292,168,679.68 × 132,259,131.17
  4. Step 4: Simplify right side
    211,782,128.45x = 38,641,975,728,101,992
  5. Step 5: Solve for x
    x = 38,641,975,728,101,992/211,782,128.45
  6. Step 6: Final answer
    x = 182,460,984.84

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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.