Home / 156,009,375.22-215,299,705.37-86,394,756.11

Finding the Fourth Proportional to 156,009,375.22, 215,299,705.37 and 86,394,756.11

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Solution

The fourth proportional to 156,009,375.22, 215,299,705.37 and 86,394,756.11 is: 119,228,511.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,009,375.22 : 215,299,705.37 = 86,394,756.11 : x
  2. Step 2: Convert to fraction form
    156,009,375.22/215,299,705.37 = 86,394,756.11/x
  3. Step 3: Cross multiply
    156,009,375.22x = 215,299,705.37 × 86,394,756.11
  4. Step 4: Simplify right side
    156,009,375.22x = 18,600,765,534,919,512
  5. Step 5: Solve for x
    x = 18,600,765,534,919,512/156,009,375.22
  6. Step 6: Final answer
    x = 119,228,511.16

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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.