Home / 122,615,571.29-169,208,256.21-66,860,854.86

Finding the Fourth Proportional to 122,615,571.29, 169,208,256.21 and 66,860,854.86

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Solution

The fourth proportional to 122,615,571.29, 169,208,256.21 and 66,860,854.86 is: 92,267,307.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,615,571.29 : 169,208,256.21 = 66,860,854.86 : x
  2. Step 2: Convert to fraction form
    122,615,571.29/169,208,256.21 = 66,860,854.86/x
  3. Step 3: Cross multiply
    122,615,571.29x = 169,208,256.21 × 66,860,854.86
  4. Step 4: Simplify right side
    122,615,571.29x = 11,313,408,659,570,504
  5. Step 5: Solve for x
    x = 11,313,408,659,570,504/122,615,571.29
  6. Step 6: Final answer
    x = 92,267,307.82

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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.