Home / 156,786,591.57-216,354,265.11-86,227,170

Finding the Fourth Proportional to 156,786,591.57, 216,354,265.11 and 86,227,170

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Solution

The fourth proportional to 156,786,591.57, 216,354,265.11 and 86,227,170 is: 118,987,317.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,786,591.57 : 216,354,265.11 = 86,227,170 : x
  2. Step 2: Convert to fraction form
    156,786,591.57/216,354,265.11 = 86,227,170/x
  3. Step 3: Cross multiply
    156,786,591.57x = 216,354,265.11 × 86,227,170
  4. Step 4: Simplify right side
    156,786,591.57x = 18,655,615,997,865,040
  5. Step 5: Solve for x
    x = 18,655,615,997,865,040/156,786,591.57
  6. Step 6: Final answer
    x = 118,987,317.80

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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.