Home / 121,905,466.53-168,228,690.53-66,149,468.97

Finding the Fourth Proportional to 121,905,466.53, 168,228,690.53 and 66,149,468.97

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Solution

The fourth proportional to 121,905,466.53, 168,228,690.53 and 66,149,468.97 is: 91,285,804.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,905,466.53 : 168,228,690.53 = 66,149,468.97 : x
  2. Step 2: Convert to fraction form
    121,905,466.53/168,228,690.53 = 66,149,468.97/x
  3. Step 3: Cross multiply
    121,905,466.53x = 168,228,690.53 × 66,149,468.97
  4. Step 4: Simplify right side
    121,905,466.53x = 11,128,238,543,747,220
  5. Step 5: Solve for x
    x = 11,128,238,543,747,220/121,905,466.53
  6. Step 6: Final answer
    x = 91,285,804.16

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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.