Home / 18,191,101,807.70-27,286,652,711.55-12,558,677,513.30

Finding the Fourth Proportional to 18,191,101,807.70, 27,286,652,711.55 and 12,558,677,513.30

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Solution

The fourth proportional to 18,191,101,807.70, 27,286,652,711.55 and 12,558,677,513.30 is: 18,838,016,269.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,191,101,807.70 : 27,286,652,711.55 = 12,558,677,513.30 : x
  2. Step 2: Convert to fraction form
    18,191,101,807.70/27,286,652,711.55 = 12,558,677,513.30/x
  3. Step 3: Cross multiply
    18,191,101,807.70x = 27,286,652,711.55 × 12,558,677,513.30
  4. Step 4: Simplify right side
    18,191,101,807.70x = 342,684,271,821,769,408,512
  5. Step 5: Solve for x
    x = 342,684,271,821,769,408,512/18,191,101,807.70
  6. Step 6: Final answer
    x = 18,838,016,269.95

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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.