Home / 640,413,683.56-883,771,639.14-347,058,251.56

Finding the Fourth Proportional to 640,413,683.56, 883,771,639.14 and 347,058,251.56

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Solution

The fourth proportional to 640,413,683.56, 883,771,639.14 and 347,058,251.56 is: 478,940,796.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    640,413,683.56 : 883,771,639.14 = 347,058,251.56 : x
  2. Step 2: Convert to fraction form
    640,413,683.56/883,771,639.14 = 347,058,251.56/x
  3. Step 3: Cross multiply
    640,413,683.56x = 883,771,639.14 × 347,058,251.56
  4. Step 4: Simplify right side
    640,413,683.56x = 306,720,239,858,243,648
  5. Step 5: Solve for x
    x = 306,720,239,858,243,648/640,413,683.56
  6. Step 6: Final answer
    x = 478,940,796.76

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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.