Home / 388,033,277.80-582,049,916.70-193,974,644.20

Finding the Fourth Proportional to 388,033,277.80, 582,049,916.70 and 193,974,644.20

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Solution

The fourth proportional to 388,033,277.80, 582,049,916.70 and 193,974,644.20 is: 290,961,966.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,033,277.80 : 582,049,916.70 = 193,974,644.20 : x
  2. Step 2: Convert to fraction form
    388,033,277.80/582,049,916.70 = 193,974,644.20/x
  3. Step 3: Cross multiply
    388,033,277.80x = 582,049,916.70 × 193,974,644.20
  4. Step 4: Simplify right side
    388,033,277.80x = 112,902,925,498,522,144
  5. Step 5: Solve for x
    x = 112,902,925,498,522,144/388,033,277.80
  6. Step 6: Final answer
    x = 290,961,966.30

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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.