Home / 388,461,013.80-582,691,520.70-346,134,690.60

Finding the Fourth Proportional to 388,461,013.80, 582,691,520.70 and 346,134,690.60

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Solution

The fourth proportional to 388,461,013.80, 582,691,520.70 and 346,134,690.60 is: 519,202,035.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,461,013.80 : 582,691,520.70 = 346,134,690.60 : x
  2. Step 2: Convert to fraction form
    388,461,013.80/582,691,520.70 = 346,134,690.60/x
  3. Step 3: Cross multiply
    388,461,013.80x = 582,691,520.70 × 346,134,690.60
  4. Step 4: Simplify right side
    388,461,013.80x = 201,689,749,232,738,016
  5. Step 5: Solve for x
    x = 201,689,749,232,738,016/388,461,013.80
  6. Step 6: Final answer
    x = 519,202,035.90

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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.