Home / 30,616,811.43-45,930,867.71-12,667,315.11

Finding the Fourth Proportional to 30,616,811.43, 45,930,867.71 and 12,667,315.11

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Solution

The fourth proportional to 30,616,811.43, 45,930,867.71 and 12,667,315.11 is: 19,003,310.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,616,811.43 : 45,930,867.71 = 12,667,315.11 : x
  2. Step 2: Convert to fraction form
    30,616,811.43/45,930,867.71 = 12,667,315.11/x
  3. Step 3: Cross multiply
    30,616,811.43x = 45,930,867.71 × 12,667,315.11
  4. Step 4: Simplify right side
    30,616,811.43x = 581,820,774,494,957.50
  5. Step 5: Solve for x
    x = 581,820,774,494,957.50/30,616,811.43
  6. Step 6: Final answer
    x = 19,003,310.51

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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.