Home / 391,104,664.20-586,656,996.30-209,706,136.20

Finding the Fourth Proportional to 391,104,664.20, 586,656,996.30 and 209,706,136.20

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Solution

The fourth proportional to 391,104,664.20, 586,656,996.30 and 209,706,136.20 is: 314,559,204.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,104,664.20 : 586,656,996.30 = 209,706,136.20 : x
  2. Step 2: Convert to fraction form
    391,104,664.20/586,656,996.30 = 209,706,136.20/x
  3. Step 3: Cross multiply
    391,104,664.20x = 586,656,996.30 × 209,706,136.20
  4. Step 4: Simplify right side
    391,104,664.20x = 123,025,571,968,770,672
  5. Step 5: Solve for x
    x = 123,025,571,968,770,672/391,104,664.20
  6. Step 6: Final answer
    x = 314,559,204.30

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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.