Finding the Fourth Proportional to 1,610,202,496.40, 2,415,303,744.60 and 690,171,837.20
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Solution
The fourth proportional to 1,610,202,496.40, 2,415,303,744.60 and 690,171,837.20 is: 1,035,257,755.80
Step by Step Solution
- Step 1: Write the proportion equation
1,610,202,496.40 : 2,415,303,744.60 = 690,171,837.20 : x - Step 2: Convert to fraction form
1,610,202,496.40/2,415,303,744.60 = 690,171,837.20/x - Step 3: Cross multiply
1,610,202,496.40x = 2,415,303,744.60 × 690,171,837.20 - Step 4: Simplify right side
1,610,202,496.40x = 1,666,974,622,806,621,696 - Step 5: Solve for x
x = 1,666,974,622,806,621,696/1,610,202,496.40 - Step 6: Final answer
x = 1,035,257,755.80
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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.