Home / 1,076,805,912.60-1,615,208,868.90-386,819,659.80

Finding the Fourth Proportional to 1,076,805,912.60, 1,615,208,868.90 and 386,819,659.80

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Solution

The fourth proportional to 1,076,805,912.60, 1,615,208,868.90 and 386,819,659.80 is: 580,229,489.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,076,805,912.60 : 1,615,208,868.90 = 386,819,659.80 : x
  2. Step 2: Convert to fraction form
    1,076,805,912.60/1,615,208,868.90 = 386,819,659.80/x
  3. Step 3: Cross multiply
    1,076,805,912.60x = 1,615,208,868.90 × 386,819,659.80
  4. Step 4: Simplify right side
    1,076,805,912.60x = 624,794,545,173,840,896
  5. Step 5: Solve for x
    x = 624,794,545,173,840,896/1,076,805,912.60
  6. Step 6: Final answer
    x = 580,229,489.70

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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.