Home / 120,382,759.90-166,142,390.79-71,490,187.90

Finding the Fourth Proportional to 120,382,759.90, 166,142,390.79 and 71,490,187.90

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Solution

The fourth proportional to 120,382,759.90, 166,142,390.79 and 71,490,187.90 is: 98,664,881.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,382,759.90 : 166,142,390.79 = 71,490,187.90 : x
  2. Step 2: Convert to fraction form
    120,382,759.90/166,142,390.79 = 71,490,187.90/x
  3. Step 3: Cross multiply
    120,382,759.90x = 166,142,390.79 × 71,490,187.90
  4. Step 4: Simplify right side
    120,382,759.90x = 11,877,550,735,732,330
  5. Step 5: Solve for x
    x = 11,877,550,735,732,330/120,382,759.90
  6. Step 6: Final answer
    x = 98,664,881.46

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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.