Home / 122,444,632.72-168,973,765.68-66,690,271.36

Finding the Fourth Proportional to 122,444,632.72, 168,973,765.68 and 66,690,271.36

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Solution

The fourth proportional to 122,444,632.72, 168,973,765.68 and 66,690,271.36 is: 92,032,668.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,444,632.72 : 168,973,765.68 = 66,690,271.36 : x
  2. Step 2: Convert to fraction form
    122,444,632.72/168,973,765.68 = 66,690,271.36/x
  3. Step 3: Cross multiply
    122,444,632.72x = 168,973,765.68 × 66,690,271.36
  4. Step 4: Simplify right side
    122,444,632.72x = 11,268,906,285,920,256
  5. Step 5: Solve for x
    x = 11,268,906,285,920,256/122,444,632.72
  6. Step 6: Final answer
    x = 92,032,668.44

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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.