Home / 20,529,728,884.73-30,807,547,201.47-8,738,828,107.67

Finding the Fourth Proportional to 20,529,728,884.73, 30,807,547,201.47 and 8,738,828,107.67

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Solution

The fourth proportional to 20,529,728,884.73, 30,807,547,201.47 and 8,738,828,107.67 is: 13,113,756,198.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,529,728,884.73 : 30,807,547,201.47 = 8,738,828,107.67 : x
  2. Step 2: Convert to fraction form
    20,529,728,884.73/30,807,547,201.47 = 8,738,828,107.67/x
  3. Step 3: Cross multiply
    20,529,728,884.73x = 30,807,547,201.47 × 8,738,828,107.67
  4. Step 4: Simplify right side
    20,529,728,884.73x = 269,221,859,412,576,305,152
  5. Step 5: Solve for x
    x = 269,221,859,412,576,305,152/20,529,728,884.73
  6. Step 6: Final answer
    x = 13,113,756,198.35

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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.