Finding the Fourth Proportional to 1,577,947,183.40, 2,366,920,775.10 and 658,483,394.60
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Solution
The fourth proportional to 1,577,947,183.40, 2,366,920,775.10 and 658,483,394.60 is: 987,725,091.90
Step by Step Solution
- Step 1: Write the proportion equation
1,577,947,183.40 : 2,366,920,775.10 = 658,483,394.60 : x - Step 2: Convert to fraction form
1,577,947,183.40/2,366,920,775.10 = 658,483,394.60/x - Step 3: Cross multiply
1,577,947,183.40x = 2,366,920,775.10 × 658,483,394.60 - Step 4: Simplify right side
1,577,947,183.40x = 1,558,578,026,737,111,040 - Step 5: Solve for x
x = 1,558,578,026,737,111,040/1,577,947,183.40 - Step 6: Final answer
x = 987,725,091.90
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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.