Home / 388,460,983.80-582,691,475.70-346,134,660.60

Finding the Fourth Proportional to 388,460,983.80, 582,691,475.70 and 346,134,660.60

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Solution

The fourth proportional to 388,460,983.80, 582,691,475.70 and 346,134,660.60 is: 519,201,990.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,460,983.80 : 582,691,475.70 = 346,134,660.60 : x
  2. Step 2: Convert to fraction form
    388,460,983.80/582,691,475.70 = 346,134,660.60/x
  3. Step 3: Cross multiply
    388,460,983.80x = 582,691,475.70 × 346,134,660.60
  4. Step 4: Simplify right side
    388,460,983.80x = 201,689,716,175,932,672
  5. Step 5: Solve for x
    x = 201,689,716,175,932,672/388,460,983.80
  6. Step 6: Final answer
    x = 519,201,990.90

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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.