Home / 278,358,942.48-384,135,328.44-154,611,134.16

Finding the Fourth Proportional to 278,358,942.48, 384,135,328.44 and 154,611,134.16

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Solution

The fourth proportional to 278,358,942.48, 384,135,328.44 and 154,611,134.16 is: 213,363,358.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,358,942.48 : 384,135,328.44 = 154,611,134.16 : x
  2. Step 2: Convert to fraction form
    278,358,942.48/384,135,328.44 = 154,611,134.16/x
  3. Step 3: Cross multiply
    278,358,942.48x = 384,135,328.44 × 154,611,134.16
  4. Step 4: Simplify right side
    278,358,942.48x = 59,391,598,801,032,504
  5. Step 5: Solve for x
    x = 59,391,598,801,032,504/278,358,942.48
  6. Step 6: Final answer
    x = 213,363,358.37

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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.