Home / 122,733,517.04-169,372,208.78-66,978,937.58

Finding the Fourth Proportional to 122,733,517.04, 169,372,208.78 and 66,978,937.58

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Solution

The fourth proportional to 122,733,517.04, 169,372,208.78 and 66,978,937.58 is: 92,430,909.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,733,517.04 : 169,372,208.78 = 66,978,937.58 : x
  2. Step 2: Convert to fraction form
    122,733,517.04/169,372,208.78 = 66,978,937.58/x
  3. Step 3: Cross multiply
    122,733,517.04x = 169,372,208.78 × 66,978,937.58
  4. Step 4: Simplify right side
    122,733,517.04x = 11,344,370,600,349,466
  5. Step 5: Solve for x
    x = 11,344,370,600,349,466/122,733,517.04
  6. Step 6: Final answer
    x = 92,430,909.45

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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.