Home / 391,862,241.83-540,769,982.00-215,650,237.19

Finding the Fourth Proportional to 391,862,241.83, 540,769,982.00 and 215,650,237.19

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Solution

The fourth proportional to 391,862,241.83, 540,769,982.00 and 215,650,237.19 is: 297,597,375.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,862,241.83 : 540,769,982.00 = 215,650,237.19 : x
  2. Step 2: Convert to fraction form
    391,862,241.83/540,769,982.00 = 215,650,237.19/x
  3. Step 3: Cross multiply
    391,862,241.83x = 540,769,982.00 × 215,650,237.19
  4. Step 4: Simplify right side
    391,862,241.83x = 116,617,174,883,401,520
  5. Step 5: Solve for x
    x = 116,617,174,883,401,520/391,862,241.83
  6. Step 6: Final answer
    x = 297,597,375.90

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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.