Home / 621,674,772.30-858,298,361.49-395,741,235.96

Finding the Fourth Proportional to 621,674,772.30, 858,298,361.49 and 395,741,235.96

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Solution

The fourth proportional to 621,674,772.30, 858,298,361.49 and 395,741,235.96 is: 546,369,371.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,674,772.30 : 858,298,361.49 = 395,741,235.96 : x
  2. Step 2: Convert to fraction form
    621,674,772.30/858,298,361.49 = 395,741,235.96/x
  3. Step 3: Cross multiply
    621,674,772.30x = 858,298,361.49 × 395,741,235.96
  4. Step 4: Simplify right side
    621,674,772.30x = 339,664,054,398,495,424
  5. Step 5: Solve for x
    x = 339,664,054,398,495,424/621,674,772.30
  6. Step 6: Final answer
    x = 546,369,371.15

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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.