Finding the Fourth Proportional to 1,532,893,796.20, 2,299,307,495.64 and 427,469,156.84
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Solution
The fourth proportional to 1,532,893,796.20, 2,299,307,495.64 and 427,469,156.84 is: 641,194,477.34
Step by Step Solution
- Step 1: Write the proportion equation
1,532,893,796.20 : 2,299,307,495.64 = 427,469,156.84 : x - Step 2: Convert to fraction form
1,532,893,796.20/2,299,307,495.64 = 427,469,156.84/x - Step 3: Cross multiply
1,532,893,796.20x = 2,299,307,495.64 × 427,469,156.84 - Step 4: Simplify right side
1,532,893,796.20x = 982,883,036,477,122,688 - Step 5: Solve for x
x = 982,883,036,477,122,688/1,532,893,796.20 - Step 6: Final answer
x = 641,194,477.34
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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.