Home / 165,887,999.70-248,831,999.55-143,194,521.30

Finding the Fourth Proportional to 165,887,999.70, 248,831,999.55 and 143,194,521.30

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Solution

The fourth proportional to 165,887,999.70, 248,831,999.55 and 143,194,521.30 is: 214,791,781.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,887,999.70 : 248,831,999.55 = 143,194,521.30 : x
  2. Step 2: Convert to fraction form
    165,887,999.70/248,831,999.55 = 143,194,521.30/x
  3. Step 3: Cross multiply
    165,887,999.70x = 248,831,999.55 × 143,194,521.30
  4. Step 4: Simplify right side
    165,887,999.70x = 35,631,379,059,684,072
  5. Step 5: Solve for x
    x = 35,631,379,059,684,072/165,887,999.70
  6. Step 6: Final answer
    x = 214,791,781.95

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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.