Home / 647,404,334.36-893,214,015.89-396,246,895.64

Finding the Fourth Proportional to 647,404,334.36, 893,214,015.89 and 396,246,895.64

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Solution

The fourth proportional to 647,404,334.36, 893,214,015.89 and 396,246,895.64 is: 546,695,877.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,404,334.36 : 893,214,015.89 = 396,246,895.64 : x
  2. Step 2: Convert to fraction form
    647,404,334.36/893,214,015.89 = 396,246,895.64/x
  3. Step 3: Cross multiply
    647,404,334.36x = 893,214,015.89 × 396,246,895.64
  4. Step 4: Simplify right side
    647,404,334.36x = 353,933,280,932,102,784
  5. Step 5: Solve for x
    x = 353,933,280,932,102,784/647,404,334.36
  6. Step 6: Final answer
    x = 546,695,877.91

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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.