Home / 18,821,232,011.40-28,231,848,017.10-16,789,568,497.80

Finding the Fourth Proportional to 18,821,232,011.40, 28,231,848,017.10 and 16,789,568,497.80

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Solution

The fourth proportional to 18,821,232,011.40, 28,231,848,017.10 and 16,789,568,497.80 is: 25,184,352,746.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,821,232,011.40 : 28,231,848,017.10 = 16,789,568,497.80 : x
  2. Step 2: Convert to fraction form
    18,821,232,011.40/28,231,848,017.10 = 16,789,568,497.80/x
  3. Step 3: Cross multiply
    18,821,232,011.40x = 28,231,848,017.10 × 16,789,568,497.80
  4. Step 4: Simplify right side
    18,821,232,011.40x = 474,000,546,102,579,494,912
  5. Step 5: Solve for x
    x = 474,000,546,102,579,494,912/18,821,232,011.40
  6. Step 6: Final answer
    x = 25,184,352,746.70

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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.