Home / 139,968,110.55-209,952,165.83-71,817,691.35

Finding the Fourth Proportional to 139,968,110.55, 209,952,165.83 and 71,817,691.35

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Solution

The fourth proportional to 139,968,110.55, 209,952,165.83 and 71,817,691.35 is: 107,726,537.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,968,110.55 : 209,952,165.83 = 71,817,691.35 : x
  2. Step 2: Convert to fraction form
    139,968,110.55/209,952,165.83 = 71,817,691.35/x
  3. Step 3: Cross multiply
    139,968,110.55x = 209,952,165.83 × 71,817,691.35
  4. Step 4: Simplify right side
    139,968,110.55x = 15,078,279,843,483,866
  5. Step 5: Solve for x
    x = 15,078,279,843,483,866/139,968,110.55
  6. Step 6: Final answer
    x = 107,726,537.03

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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.