Finding the Fourth Proportional to 789,877,485.97, 1,090,034,571.98 and 437,446,088.26
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Solution
The fourth proportional to 789,877,485.97, 1,090,034,571.98 and 437,446,088.26 is: 603,677,618.43
Step by Step Solution
- Step 1: Write the proportion equation
789,877,485.97 : 1,090,034,571.98 = 437,446,088.26 : x - Step 2: Convert to fraction form
789,877,485.97/1,090,034,571.98 = 437,446,088.26/x - Step 3: Cross multiply
789,877,485.97x = 1,090,034,571.98 × 437,446,088.26 - Step 4: Simplify right side
789,877,485.97x = 476,831,359,580,814,400 - Step 5: Solve for x
x = 476,831,359,580,814,400/789,877,485.97 - Step 6: Final answer
x = 603,677,618.43
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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.