Home / 378,108,005.70-567,162,008.55-90,893,669.70

Finding the Fourth Proportional to 378,108,005.70, 567,162,008.55 and 90,893,669.70

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Solution

The fourth proportional to 378,108,005.70, 567,162,008.55 and 90,893,669.70 is: 136,340,504.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,108,005.70 : 567,162,008.55 = 90,893,669.70 : x
  2. Step 2: Convert to fraction form
    378,108,005.70/567,162,008.55 = 90,893,669.70/x
  3. Step 3: Cross multiply
    378,108,005.70x = 567,162,008.55 × 90,893,669.70
  4. Step 4: Simplify right side
    378,108,005.70x = 51,551,436,271,532,272
  5. Step 5: Solve for x
    x = 51,551,436,271,532,272/378,108,005.70
  6. Step 6: Final answer
    x = 136,340,504.55

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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.