Home / 39,619,158,915.87-54,674,872,836.44-21,554,777,823.75

Finding the Fourth Proportional to 39,619,158,915.87, 54,674,872,836.44 and 21,554,777,823.75

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Solution

The fourth proportional to 39,619,158,915.87, 54,674,872,836.44 and 21,554,777,823.75 is: 29,745,829,259.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,619,158,915.87 : 54,674,872,836.44 = 21,554,777,823.75 : x
  2. Step 2: Convert to fraction form
    39,619,158,915.87/54,674,872,836.44 = 21,554,777,823.75/x
  3. Step 3: Cross multiply
    39,619,158,915.87x = 54,674,872,836.44 × 21,554,777,823.75
  4. Step 4: Simplify right side
    39,619,158,915.87x = 1,178,504,736,531,248,185,344
  5. Step 5: Solve for x
    x = 1,178,504,736,531,248,185,344/39,619,158,915.87
  6. Step 6: Final answer
    x = 29,745,829,259.87

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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.