Home / 155,110,142.34-214,049,441.25-85,501,999.98

Finding the Fourth Proportional to 155,110,142.34, 214,049,441.25 and 85,501,999.98

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Solution

The fourth proportional to 155,110,142.34, 214,049,441.25 and 85,501,999.98 is: 117,991,351.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,110,142.34 : 214,049,441.25 = 85,501,999.98 : x
  2. Step 2: Convert to fraction form
    155,110,142.34/214,049,441.25 = 85,501,999.98/x
  3. Step 3: Cross multiply
    155,110,142.34x = 214,049,441.25 × 85,501,999.98
  4. Step 4: Simplify right side
    155,110,142.34x = 18,301,655,321,476,512
  5. Step 5: Solve for x
    x = 18,301,655,321,476,512/155,110,142.34
  6. Step 6: Final answer
    x = 117,991,351.47

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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.