Finding the Fourth Proportional to 1,607,818,639.86, 2,411,157,218.60 and 471,738,245.18
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Solution
The fourth proportional to 1,607,818,639.86, 2,411,157,218.60 and 471,738,245.18 is: 707,439,910.79
Step by Step Solution
- Step 1: Write the proportion equation
1,607,818,639.86 : 2,411,157,218.60 = 471,738,245.18 : x - Step 2: Convert to fraction form
1,607,818,639.86/2,411,157,218.60 = 471,738,245.18/x - Step 3: Cross multiply
1,607,818,639.86x = 2,411,157,218.60 × 471,738,245.18 - Step 4: Simplify right side
1,607,818,639.86x = 1,137,435,075,155,453,568 - Step 5: Solve for x
x = 1,137,435,075,155,453,568/1,607,818,639.86 - Step 6: Final answer
x = 707,439,910.79
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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.