Home / 99,907,078.76-137,874,797.70-55,855,933.64

Finding the Fourth Proportional to 99,907,078.76, 137,874,797.70 and 55,855,933.64

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Solution

The fourth proportional to 99,907,078.76, 137,874,797.70 and 55,855,933.64 is: 77,082,881.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,907,078.76 : 137,874,797.70 = 55,855,933.64 : x
  2. Step 2: Convert to fraction form
    99,907,078.76/137,874,797.70 = 55,855,933.64/x
  3. Step 3: Cross multiply
    99,907,078.76x = 137,874,797.70 × 55,855,933.64
  4. Step 4: Simplify right side
    99,907,078.76x = 7,701,125,550,959,624
  5. Step 5: Solve for x
    x = 7,701,125,550,959,624/99,907,078.76
  6. Step 6: Final answer
    x = 77,082,881.88

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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.