Finding the Fourth Proportional to 7,085,888,135.60, 10,628,832,203.40 and 4,744,146,513.20
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Solution
The fourth proportional to 7,085,888,135.60, 10,628,832,203.40 and 4,744,146,513.20 is: 7,116,219,769.80
Step by Step Solution
- Step 1: Write the proportion equation
7,085,888,135.60 : 10,628,832,203.40 = 4,744,146,513.20 : x - Step 2: Convert to fraction form
7,085,888,135.60/10,628,832,203.40 = 4,744,146,513.20/x - Step 3: Cross multiply
7,085,888,135.60x = 10,628,832,203.40 × 4,744,146,513.20 - Step 4: Simplify right side
7,085,888,135.60x = 50,424,737,237,147,975,680 - Step 5: Solve for x
x = 50,424,737,237,147,975,680/7,085,888,135.60 - Step 6: Final answer
x = 7,116,219,769.80
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Double scale
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Similar ratio
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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.