Home / 392,408,664.71-588,593,431.31-146,747,239.20

Finding the Fourth Proportional to 392,408,664.71, 588,593,431.31 and 146,747,239.20

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Solution

The fourth proportional to 392,408,664.71, 588,593,431.31 and 146,747,239.20 is: 220,113,541.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,408,664.71 : 588,593,431.31 = 146,747,239.20 : x
  2. Step 2: Convert to fraction form
    392,408,664.71/588,593,431.31 = 146,747,239.20/x
  3. Step 3: Cross multiply
    392,408,664.71x = 588,593,431.31 × 146,747,239.20
  4. Step 4: Simplify right side
    392,408,664.71x = 86,374,461,055,263,584
  5. Step 5: Solve for x
    x = 86,374,461,055,263,584/392,408,664.71
  6. Step 6: Final answer
    x = 220,113,541.89

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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.