Finding the Fourth Proportional to 1,072,351,115.80, 1,608,526,673.70 and 664,204,427.80
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Solution
The fourth proportional to 1,072,351,115.80, 1,608,526,673.70 and 664,204,427.80 is: 996,306,641.70
Step by Step Solution
- Step 1: Write the proportion equation
1,072,351,115.80 : 1,608,526,673.70 = 664,204,427.80 : x - Step 2: Convert to fraction form
1,072,351,115.80/1,608,526,673.70 = 664,204,427.80/x - Step 3: Cross multiply
1,072,351,115.80x = 1,608,526,673.70 × 664,204,427.80 - Step 4: Simplify right side
1,072,351,115.80x = 1,068,390,538,905,945,728 - Step 5: Solve for x
x = 1,068,390,538,905,945,728/1,072,351,115.80 - Step 6: Final answer
x = 996,306,641.70
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1.5x scale
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.