Home / 205,558,626-308,418,640.38-90,462,431.64

Finding the Fourth Proportional to 205,558,626, 308,418,640.38 and 90,462,431.64

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Solution

The fourth proportional to 205,558,626, 308,418,640.38 and 90,462,431.64 is: 135,729,162.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,558,626 : 308,418,640.38 = 90,462,431.64 : x
  2. Step 2: Convert to fraction form
    205,558,626/308,418,640.38 = 90,462,431.64/x
  3. Step 3: Cross multiply
    205,558,626x = 308,418,640.38 × 90,462,431.64
  4. Step 4: Simplify right side
    205,558,626x = 27,900,300,171,877,492
  5. Step 5: Solve for x
    x = 27,900,300,171,877,492/205,558,626
  6. Step 6: Final answer
    x = 135,729,162.60

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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.