Finding the Fourth Proportional to 990,111,773.50, 1,366,365,122.49 and 544,075,252.18
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Solution
The fourth proportional to 990,111,773.50, 1,366,365,122.49 and 544,075,252.18 is: 750,829,823.95
Step by Step Solution
- Step 1: Write the proportion equation
990,111,773.50 : 1,366,365,122.49 = 544,075,252.18 : x - Step 2: Convert to fraction form
990,111,773.50/1,366,365,122.49 = 544,075,252.18/x - Step 3: Cross multiply
990,111,773.50x = 1,366,365,122.49 × 544,075,252.18 - Step 4: Simplify right side
990,111,773.50x = 743,405,448,588,703,232 - Step 5: Solve for x
x = 743,405,448,588,703,232/990,111,773.50 - Step 6: Final answer
x = 750,829,823.95
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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.