Home / 67,077,814.86-100,616,745.54-21,023,257.20

Finding the Fourth Proportional to 67,077,814.86, 100,616,745.54 and 21,023,257.20

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Solution

The fourth proportional to 67,077,814.86, 100,616,745.54 and 21,023,257.20 is: 31,534,893.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,077,814.86 : 100,616,745.54 = 21,023,257.20 : x
  2. Step 2: Convert to fraction form
    67,077,814.86/100,616,745.54 = 21,023,257.20/x
  3. Step 3: Cross multiply
    67,077,814.86x = 100,616,745.54 × 21,023,257.20
  4. Step 4: Simplify right side
    67,077,814.86x = 2,115,291,720,114,373
  5. Step 5: Solve for x
    x = 2,115,291,720,114,373/67,077,814.86
  6. Step 6: Final answer
    x = 31,534,893.09

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.