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Finding the Fourth Proportional to 641,559,496.70, 885,200,361.77 and 363,101,020.13

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Solution

The fourth proportional to 641,559,496.70, 885,200,361.77 and 363,101,020.13 is: 500,993,525.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,559,496.70 : 885,200,361.77 = 363,101,020.13 : x
  2. Step 2: Convert to fraction form
    641,559,496.70/885,200,361.77 = 363,101,020.13/x
  3. Step 3: Cross multiply
    641,559,496.70x = 885,200,361.77 × 363,101,020.13
  4. Step 4: Simplify right side
    641,559,496.70x = 321,417,154,371,890,560
  5. Step 5: Solve for x
    x = 321,417,154,371,890,560/641,559,496.70
  6. Step 6: Final answer
    x = 500,993,525.97

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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.