Finding the Fourth Proportional to 1,864,798,616.40, 2,798,205,694.20 and 829,819,237.20
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Solution
The fourth proportional to 1,864,798,616.40, 2,798,205,694.20 and 829,819,237.20 is: 1,245,177,304.55
Step by Step Solution
- Step 1: Write the proportion equation
1,864,798,616.40 : 2,798,205,694.20 = 829,819,237.20 : x - Step 2: Convert to fraction form
1,864,798,616.40/2,798,205,694.20 = 829,819,237.20/x - Step 3: Cross multiply
1,864,798,616.40x = 2,798,205,694.20 × 829,819,237.20 - Step 4: Simplify right side
1,864,798,616.40x = 2,322,004,914,689,740,288 - Step 5: Solve for x
x = 2,322,004,914,689,740,288/1,864,798,616.40 - Step 6: Final answer
x = 1,245,177,304.55
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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.