Home / 100,048,315.66-138,070,990.60-55,394,287.36

Finding the Fourth Proportional to 100,048,315.66, 138,070,990.60 and 55,394,287.36

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Solution

The fourth proportional to 100,048,315.66, 138,070,990.60 and 55,394,287.36 is: 76,446,505.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,048,315.66 : 138,070,990.60 = 55,394,287.36 : x
  2. Step 2: Convert to fraction form
    100,048,315.66/138,070,990.60 = 55,394,287.36/x
  3. Step 3: Cross multiply
    100,048,315.66x = 138,070,990.60 × 55,394,287.36
  4. Step 4: Simplify right side
    100,048,315.66x = 7,648,344,128,892,596
  5. Step 5: Solve for x
    x = 7,648,344,128,892,596/100,048,315.66
  6. Step 6: Final answer
    x = 76,446,505.66

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.