Home / 290,304,610.20-435,456,915.30-218,640,994.20

Finding the Fourth Proportional to 290,304,610.20, 435,456,915.30 and 218,640,994.20

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Solution

The fourth proportional to 290,304,610.20, 435,456,915.30 and 218,640,994.20 is: 327,961,491.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,304,610.20 : 435,456,915.30 = 218,640,994.20 : x
  2. Step 2: Convert to fraction form
    290,304,610.20/435,456,915.30 = 218,640,994.20/x
  3. Step 3: Cross multiply
    290,304,610.20x = 435,456,915.30 × 218,640,994.20
  4. Step 4: Simplify right side
    290,304,610.20x = 95,208,732,892,457,184
  5. Step 5: Solve for x
    x = 95,208,732,892,457,184/290,304,610.20
  6. Step 6: Final answer
    x = 327,961,491.30

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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.