Finding the Fourth Proportional to 1,901,468,290.80, 2,852,202,436.20 and 868,346,986.80
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Solution
The fourth proportional to 1,901,468,290.80, 2,852,202,436.20 and 868,346,986.80 is: 1,302,520,480.20
Step by Step Solution
- Step 1: Write the proportion equation
1,901,468,290.80 : 2,852,202,436.20 = 868,346,986.80 : x - Step 2: Convert to fraction form
1,901,468,290.80/2,852,202,436.20 = 868,346,986.80/x - Step 3: Cross multiply
1,901,468,290.80x = 2,852,202,436.20 × 868,346,986.80 - Step 4: Simplify right side
1,901,468,290.80x = 2,476,701,391,217,888,768 - Step 5: Solve for x
x = 2,476,701,391,217,888,768/1,901,468,290.80 - Step 6: Final answer
x = 1,302,520,480.20
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1.5x scale
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.