Home / 669,362,915.20-1,004,044,372.80-238,385,891.20

Finding the Fourth Proportional to 669,362,915.20, 1,004,044,372.80 and 238,385,891.20

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Solution

The fourth proportional to 669,362,915.20, 1,004,044,372.80 and 238,385,891.20 is: 357,578,836.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,362,915.20 : 1,004,044,372.80 = 238,385,891.20 : x
  2. Step 2: Convert to fraction form
    669,362,915.20/1,004,044,372.80 = 238,385,891.20/x
  3. Step 3: Cross multiply
    669,362,915.20x = 1,004,044,372.80 × 238,385,891.20
  4. Step 4: Simplify right side
    669,362,915.20x = 239,350,012,614,273,024
  5. Step 5: Solve for x
    x = 239,350,012,614,273,024/669,362,915.20
  6. Step 6: Final answer
    x = 357,578,836.80

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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.