Home / 186,491,805.40-279,737,708.10-145,677,136.60

Finding the Fourth Proportional to 186,491,805.40, 279,737,708.10 and 145,677,136.60

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Solution

The fourth proportional to 186,491,805.40, 279,737,708.10 and 145,677,136.60 is: 218,515,704.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,491,805.40 : 279,737,708.10 = 145,677,136.60 : x
  2. Step 2: Convert to fraction form
    186,491,805.40/279,737,708.10 = 145,677,136.60/x
  3. Step 3: Cross multiply
    186,491,805.40x = 279,737,708.10 × 145,677,136.60
  4. Step 4: Simplify right side
    186,491,805.40x = 40,751,388,315,054,632
  5. Step 5: Solve for x
    x = 40,751,388,315,054,632/186,491,805.40
  6. Step 6: Final answer
    x = 218,515,704.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.