Home / 120,830,590.72-166,740,398.40-68,612,728.96

Finding the Fourth Proportional to 120,830,590.72, 166,740,398.40 and 68,612,728.96

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Solution

The fourth proportional to 120,830,590.72, 166,740,398.40 and 68,612,728.96 is: 94,682,262.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,830,590.72 : 166,740,398.40 = 68,612,728.96 : x
  2. Step 2: Convert to fraction form
    120,830,590.72/166,740,398.40 = 68,612,728.96/x
  3. Step 3: Cross multiply
    120,830,590.72x = 166,740,398.40 × 68,612,728.96
  4. Step 4: Simplify right side
    120,830,590.72x = 11,440,513,762,101,616
  5. Step 5: Solve for x
    x = 11,440,513,762,101,616/120,830,590.72
  6. Step 6: Final answer
    x = 94,682,262.94

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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.