Home / 698,067,863.37-963,391,241.46-400,767,478.41

Finding the Fourth Proportional to 698,067,863.37, 963,391,241.46 and 400,767,478.41

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Solution

The fourth proportional to 698,067,863.37, 963,391,241.46 and 400,767,478.41 is: 553,092,183.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    698,067,863.37 : 963,391,241.46 = 400,767,478.41 : x
  2. Step 2: Convert to fraction form
    698,067,863.37/963,391,241.46 = 400,767,478.41/x
  3. Step 3: Cross multiply
    698,067,863.37x = 963,391,241.46 × 400,767,478.41
  4. Step 4: Simplify right side
    698,067,863.37x = 386,095,878,567,319,232
  5. Step 5: Solve for x
    x = 386,095,878,567,319,232/698,067,863.37
  6. Step 6: Final answer
    x = 553,092,183.19

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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.