Home / 67,009,106.54-100,519,449.30-18,486,960.40

Finding the Fourth Proportional to 67,009,106.54, 100,519,449.30 and 18,486,960.40

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Solution

The fourth proportional to 67,009,106.54, 100,519,449.30 and 18,486,960.40 is: 27,732,037.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,009,106.54 : 100,519,449.30 = 18,486,960.40 : x
  2. Step 2: Convert to fraction form
    67,009,106.54/100,519,449.30 = 18,486,960.40/x
  3. Step 3: Cross multiply
    67,009,106.54x = 100,519,449.30 × 18,486,960.40
  4. Step 4: Simplify right side
    67,009,106.54x = 1,858,299,078,638,907.50
  5. Step 5: Solve for x
    x = 1,858,299,078,638,907.50/67,009,106.54
  6. Step 6: Final answer
    x = 27,732,037.85

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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.