Home / 689,397,731.37-1,028,024,968.41-683,179,871.67

Finding the Fourth Proportional to 689,397,731.37, 1,028,024,968.41 and 683,179,871.67

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Solution

The fourth proportional to 689,397,731.37, 1,028,024,968.41 and 683,179,871.67 is: 1,018,752,940.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,397,731.37 : 1,028,024,968.41 = 683,179,871.67 : x
  2. Step 2: Convert to fraction form
    689,397,731.37/1,028,024,968.41 = 683,179,871.67/x
  3. Step 3: Cross multiply
    689,397,731.37x = 1,028,024,968.41 × 683,179,871.67
  4. Step 4: Simplify right side
    689,397,731.37x = 702,325,965,991,899,520
  5. Step 5: Solve for x
    x = 702,325,965,991,899,520/689,397,731.37
  6. Step 6: Final answer
    x = 1,018,752,940.48

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.