Home / 419,331,243.60-628,996,865.40-387,082,616.40

Finding the Fourth Proportional to 419,331,243.60, 628,996,865.40 and 387,082,616.40

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Solution

The fourth proportional to 419,331,243.60, 628,996,865.40 and 387,082,616.40 is: 580,623,924.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,331,243.60 : 628,996,865.40 = 387,082,616.40 : x
  2. Step 2: Convert to fraction form
    419,331,243.60/628,996,865.40 = 387,082,616.40/x
  3. Step 3: Cross multiply
    419,331,243.60x = 628,996,865.40 × 387,082,616.40
  4. Step 4: Simplify right side
    419,331,243.60x = 243,473,752,366,430,624
  5. Step 5: Solve for x
    x = 243,473,752,366,430,624/419,331,243.60
  6. Step 6: Final answer
    x = 580,623,924.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.