Home / 122,444,628.72-168,973,760.16-66,690,267.36

Finding the Fourth Proportional to 122,444,628.72, 168,973,760.16 and 66,690,267.36

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Solution

The fourth proportional to 122,444,628.72, 168,973,760.16 and 66,690,267.36 is: 92,032,662.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,444,628.72 : 168,973,760.16 = 66,690,267.36 : x
  2. Step 2: Convert to fraction form
    122,444,628.72/168,973,760.16 = 66,690,267.36/x
  3. Step 3: Cross multiply
    122,444,628.72x = 168,973,760.16 × 66,690,267.36
  4. Step 4: Simplify right side
    122,444,628.72x = 11,268,905,241,894,916
  5. Step 5: Solve for x
    x = 11,268,905,241,894,916/122,444,628.72
  6. Step 6: Final answer
    x = 92,032,662.92

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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.