Home / 77,017,431.21-115,563,513.83-33,881,029.64

Finding the Fourth Proportional to 77,017,431.21, 115,563,513.83 and 33,881,029.64

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Solution

The fourth proportional to 77,017,431.21, 115,563,513.83 and 33,881,029.64 is: 50,837,982.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,017,431.21 : 115,563,513.83 = 33,881,029.64 : x
  2. Step 2: Convert to fraction form
    77,017,431.21/115,563,513.83 = 33,881,029.64/x
  3. Step 3: Cross multiply
    77,017,431.21x = 115,563,513.83 × 33,881,029.64
  4. Step 4: Simplify right side
    77,017,431.21x = 3,915,410,837,376,780
  5. Step 5: Solve for x
    x = 3,915,410,837,376,780/77,017,431.21
  6. Step 6: Final answer
    x = 50,837,982.72

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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.