Home / 161,140,063,072.79-222,373,978,380.61-87,897,889,902.09

Finding the Fourth Proportional to 161,140,063,072.79, 222,373,978,380.61 and 87,897,889,902.09

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Solution

The fourth proportional to 161,140,063,072.79, 222,373,978,380.61 and 87,897,889,902.09 is: 121,299,465,173.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,140,063,072.79 : 222,373,978,380.61 = 87,897,889,902.09 : x
  2. Step 2: Convert to fraction form
    161,140,063,072.79/222,373,978,380.61 = 87,897,889,902.09/x
  3. Step 3: Cross multiply
    161,140,063,072.79x = 222,373,978,380.61 × 87,897,889,902.09
  4. Step 4: Simplify right side
    161,140,063,072.79x = 19,546,203,468,788,599,357,440
  5. Step 5: Solve for x
    x = 19,546,203,468,788,599,357,440/161,140,063,072.79
  6. Step 6: Final answer
    x = 121,299,465,173.72

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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.