Finding the Fourth Proportional to 1,130,330,517.24, 1,559,857,406.99 and 628,528,527.03
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Solution
The fourth proportional to 1,130,330,517.24, 1,559,857,406.99 and 628,528,527.03 is: 867,370,086.39
Step by Step Solution
- Step 1: Write the proportion equation
1,130,330,517.24 : 1,559,857,406.99 = 628,528,527.03 : x - Step 2: Convert to fraction form
1,130,330,517.24/1,559,857,406.99 = 628,528,527.03/x - Step 3: Cross multiply
1,130,330,517.24x = 1,559,857,406.99 × 628,528,527.03 - Step 4: Simplify right side
1,130,330,517.24x = 980,414,878,392,259,840 - Step 5: Solve for x
x = 980,414,878,392,259,840/1,130,330,517.24 - Step 6: Final answer
x = 867,370,086.39
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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.