Home / 684,891,123,557.40-945,150,369,974.45-376,262,475,608.78

Finding the Fourth Proportional to 684,891,123,557.40, 945,150,369,974.45 and 376,262,475,608.78

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Solution

The fourth proportional to 684,891,123,557.40, 945,150,369,974.45 and 376,262,475,608.78 is: 519,242,556,659.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,891,123,557.40 : 945,150,369,974.45 = 376,262,475,608.78 : x
  2. Step 2: Convert to fraction form
    684,891,123,557.40/945,150,369,974.45 = 376,262,475,608.78/x
  3. Step 3: Cross multiply
    684,891,123,557.40x = 945,150,369,974.45 × 376,262,475,608.78
  4. Step 4: Simplify right side
    684,891,123,557.40x = 355,624,618,029,140,903,198,720
  5. Step 5: Solve for x
    x = 355,624,618,029,140,903,198,720/684,891,123,557.40
  6. Step 6: Final answer
    x = 519,242,556,659.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.