Finding the Fourth Proportional to 763,410,277.60, 1,145,115,416.40 and 354,330,469.60
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Solution
The fourth proportional to 763,410,277.60, 1,145,115,416.40 and 354,330,469.60 is: 531,495,704.40
Step by Step Solution
- Step 1: Write the proportion equation
763,410,277.60 : 1,145,115,416.40 = 354,330,469.60 : x - Step 2: Convert to fraction form
763,410,277.60/1,145,115,416.40 = 354,330,469.60/x - Step 3: Cross multiply
763,410,277.60x = 1,145,115,416.40 × 354,330,469.60 - Step 4: Simplify right side
763,410,277.60x = 405,749,283,239,211,584 - Step 5: Solve for x
x = 405,749,283,239,211,584/763,410,277.60 - Step 6: Final answer
x = 531,495,704.40
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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.