Home / 769,877,998.40-1,154,816,997.60-252,183,605.60

Finding the Fourth Proportional to 769,877,998.40, 1,154,816,997.60 and 252,183,605.60

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Solution

The fourth proportional to 769,877,998.40, 1,154,816,997.60 and 252,183,605.60 is: 378,275,408.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    769,877,998.40 : 1,154,816,997.60 = 252,183,605.60 : x
  2. Step 2: Convert to fraction form
    769,877,998.40/1,154,816,997.60 = 252,183,605.60/x
  3. Step 3: Cross multiply
    769,877,998.40x = 1,154,816,997.60 × 252,183,605.60
  4. Step 4: Simplify right side
    769,877,998.40x = 291,225,914,262,934,528
  5. Step 5: Solve for x
    x = 291,225,914,262,934,528/769,877,998.40
  6. Step 6: Final answer
    x = 378,275,408.40

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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.