Finding the Fourth Proportional to 867,903,821.79, 1,197,806,629.29 and 486,528,861.66
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Solution
The fourth proportional to 867,903,821.79, 1,197,806,629.29 and 486,528,861.66 is: 671,465,525.56
Step by Step Solution
- Step 1: Write the proportion equation
867,903,821.79 : 1,197,806,629.29 = 486,528,861.66 : x - Step 2: Convert to fraction form
867,903,821.79/1,197,806,629.29 = 486,528,861.66/x - Step 3: Cross multiply
867,903,821.79x = 1,197,806,629.29 × 486,528,861.66 - Step 4: Simplify right side
867,903,821.79x = 582,767,495,837,265,280 - Step 5: Solve for x
x = 582,767,495,837,265,280/867,903,821.79 - Step 6: Final answer
x = 671,465,525.56
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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.