Home / 1,297,318,829.64-1,790,291,111.58-702,589,636.32

Finding the Fourth Proportional to 1,297,318,829.64, 1,790,291,111.58 and 702,589,636.32

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Solution

The fourth proportional to 1,297,318,829.64, 1,790,291,111.58 and 702,589,636.32 is: 969,568,892.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,297,318,829.64 : 1,790,291,111.58 = 702,589,636.32 : x
  2. Step 2: Convert to fraction form
    1,297,318,829.64/1,790,291,111.58 = 702,589,636.32/x
  3. Step 3: Cross multiply
    1,297,318,829.64x = 1,790,291,111.58 × 702,589,636.32
  4. Step 4: Simplify right side
    1,297,318,829.64x = 1,257,839,980,991,920,896
  5. Step 5: Solve for x
    x = 1,257,839,980,991,920,896/1,297,318,829.64
  6. Step 6: Final answer
    x = 969,568,892.59

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.