Home / 136,326,104.40-204,489,156.60-78,788,758.80

Finding the Fourth Proportional to 136,326,104.40, 204,489,156.60 and 78,788,758.80

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Solution

The fourth proportional to 136,326,104.40, 204,489,156.60 and 78,788,758.80 is: 118,183,138.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,326,104.40 : 204,489,156.60 = 78,788,758.80 : x
  2. Step 2: Convert to fraction form
    136,326,104.40/204,489,156.60 = 78,788,758.80/x
  3. Step 3: Cross multiply
    136,326,104.40x = 204,489,156.60 × 78,788,758.80
  4. Step 4: Simplify right side
    136,326,104.40x = 16,111,446,836,572,828
  5. Step 5: Solve for x
    x = 16,111,446,836,572,828/136,326,104.40
  6. Step 6: Final answer
    x = 118,183,138.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.