Home / 66,802,912.21-92,186,454.40-39,302,608.69

Finding the Fourth Proportional to 66,802,912.21, 92,186,454.40 and 39,302,608.69

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Solution

The fourth proportional to 66,802,912.21, 92,186,454.40 and 39,302,608.69 is: 54,236,679.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,802,912.21 : 92,186,454.40 = 39,302,608.69 : x
  2. Step 2: Convert to fraction form
    66,802,912.21/92,186,454.40 = 39,302,608.69/x
  3. Step 3: Cross multiply
    66,802,912.21x = 92,186,454.40 × 39,302,608.69
  4. Step 4: Simplify right side
    66,802,912.21x = 3,623,168,143,801,729
  5. Step 5: Solve for x
    x = 3,623,168,143,801,729/66,802,912.21
  6. Step 6: Final answer
    x = 54,236,679.57

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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.