Home / 669,137,703.73-1,003,316,832.16-259,715,557.33

Finding the Fourth Proportional to 669,137,703.73, 1,003,316,832.16 and 259,715,557.33

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Solution

The fourth proportional to 669,137,703.73, 1,003,316,832.16 and 259,715,557.33 is: 389,422,070.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,137,703.73 : 1,003,316,832.16 = 259,715,557.33 : x
  2. Step 2: Convert to fraction form
    669,137,703.73/1,003,316,832.16 = 259,715,557.33/x
  3. Step 3: Cross multiply
    669,137,703.73x = 1,003,316,832.16 × 259,715,557.33
  4. Step 4: Simplify right side
    669,137,703.73x = 260,576,990,243,004,480
  5. Step 5: Solve for x
    x = 260,576,990,243,004,480/669,137,703.73
  6. Step 6: Final answer
    x = 389,422,070.81

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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.