Home / 212,339,743.44-292,993,972.92-122,999,918.64

Finding the Fourth Proportional to 212,339,743.44, 292,993,972.92 and 122,999,918.64

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Solution

The fourth proportional to 212,339,743.44, 292,993,972.92 and 122,999,918.64 is: 169,719,687.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,339,743.44 : 292,993,972.92 = 122,999,918.64 : x
  2. Step 2: Convert to fraction form
    212,339,743.44/292,993,972.92 = 122,999,918.64/x
  3. Step 3: Cross multiply
    212,339,743.44x = 292,993,972.92 × 122,999,918.64
  4. Step 4: Simplify right side
    212,339,743.44x = 36,038,234,831,170,368
  5. Step 5: Solve for x
    x = 36,038,234,831,170,368/212,339,743.44
  6. Step 6: Final answer
    x = 169,719,687.17

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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.