Home / 769,877,999.40-1,154,816,999.10-252,183,606.60

Finding the Fourth Proportional to 769,877,999.40, 1,154,816,999.10 and 252,183,606.60

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Solution

The fourth proportional to 769,877,999.40, 1,154,816,999.10 and 252,183,606.60 is: 378,275,409.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    769,877,999.40 : 1,154,816,999.10 = 252,183,606.60 : x
  2. Step 2: Convert to fraction form
    769,877,999.40/1,154,816,999.10 = 252,183,606.60/x
  3. Step 3: Cross multiply
    769,877,999.40x = 1,154,816,999.10 × 252,183,606.60
  4. Step 4: Simplify right side
    769,877,999.40x = 291,225,915,796,026,944
  5. Step 5: Solve for x
    x = 291,225,915,796,026,944/769,877,999.40
  6. Step 6: Final answer
    x = 378,275,409.90

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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.