Finding the Fourth Proportional to 1,610,202,464.40, 2,415,303,696.60 and 690,171,805.20
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Solution
The fourth proportional to 1,610,202,464.40, 2,415,303,696.60 and 690,171,805.20 is: 1,035,257,707.80
Step by Step Solution
- Step 1: Write the proportion equation
1,610,202,464.40 : 2,415,303,696.60 = 690,171,805.20 : x - Step 2: Convert to fraction form
1,610,202,464.40/2,415,303,696.60 = 690,171,805.20/x - Step 3: Cross multiply
1,610,202,464.40x = 2,415,303,696.60 × 690,171,805.20 - Step 4: Simplify right side
1,610,202,464.40x = 1,666,974,512,388,655,104 - Step 5: Solve for x
x = 1,666,974,512,388,655,104/1,610,202,464.40 - Step 6: Final answer
x = 1,035,257,707.80
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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.