Finding the Fourth Proportional to 1,365,355,193.40, 1,884,193,442.12 and 738,830,344.32
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Solution
The fourth proportional to 1,365,355,193.40, 1,884,193,442.12 and 738,830,344.32 is: 1,019,587,647.48
Step by Step Solution
- Step 1: Write the proportion equation
1,365,355,193.40 : 1,884,193,442.12 = 738,830,344.32 : x - Step 2: Convert to fraction form
1,365,355,193.40/1,884,193,442.12 = 738,830,344.32/x - Step 3: Cross multiply
1,365,355,193.40x = 1,884,193,442.12 × 738,830,344.32 - Step 4: Simplify right side
1,365,355,193.40x = 1,392,099,289,607,005,696 - Step 5: Solve for x
x = 1,392,099,289,607,005,696/1,365,355,193.40 - Step 6: Final answer
x = 1,019,587,647.48
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.