Home / 131,054,438.18-180,858,968.30-71,519,578.29

Finding the Fourth Proportional to 131,054,438.18, 180,858,968.30 and 71,519,578.29

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Solution

The fourth proportional to 131,054,438.18, 180,858,968.30 and 71,519,578.29 is: 98,699,115.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,054,438.18 : 180,858,968.30 = 71,519,578.29 : x
  2. Step 2: Convert to fraction form
    131,054,438.18/180,858,968.30 = 71,519,578.29/x
  3. Step 3: Cross multiply
    131,054,438.18x = 180,858,968.30 × 71,519,578.29
  4. Step 4: Simplify right side
    131,054,438.18x = 12,934,957,142,959,280
  5. Step 5: Solve for x
    x = 12,934,957,142,959,280/131,054,438.18
  6. Step 6: Final answer
    x = 98,699,115.59

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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.