Home / 78,028,128.30-117,006,763.05-29,489,850.30

Finding the Fourth Proportional to 78,028,128.30, 117,006,763.05 and 29,489,850.30

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Solution

The fourth proportional to 78,028,128.30, 117,006,763.05 and 29,489,850.30 is: 44,221,385.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,028,128.30 : 117,006,763.05 = 29,489,850.30 : x
  2. Step 2: Convert to fraction form
    78,028,128.30/117,006,763.05 = 29,489,850.30/x
  3. Step 3: Cross multiply
    78,028,128.30x = 117,006,763.05 × 29,489,850.30
  4. Step 4: Simplify right side
    78,028,128.30x = 3,450,511,926,432,071.50
  5. Step 5: Solve for x
    x = 3,450,511,926,432,071.50/78,028,128.30
  6. Step 6: Final answer
    x = 44,221,385.31

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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.