Home / 122,444,616.72-168,973,743.60-66,690,255.36

Finding the Fourth Proportional to 122,444,616.72, 168,973,743.60 and 66,690,255.36

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Solution

The fourth proportional to 122,444,616.72, 168,973,743.60 and 66,690,255.36 is: 92,032,646.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,444,616.72 : 168,973,743.60 = 66,690,255.36 : x
  2. Step 2: Convert to fraction form
    122,444,616.72/168,973,743.60 = 66,690,255.36/x
  3. Step 3: Cross multiply
    122,444,616.72x = 168,973,743.60 × 66,690,255.36
  4. Step 4: Simplify right side
    122,444,616.72x = 11,268,902,109,819,166
  5. Step 5: Solve for x
    x = 11,268,902,109,819,166/122,444,616.72
  6. Step 6: Final answer
    x = 92,032,646.36

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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.