Finding the Fourth Proportional to 5,640,576,503.20, 8,460,864,754.80 and 5,543,830,621.60
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Solution
The fourth proportional to 5,640,576,503.20, 8,460,864,754.80 and 5,543,830,621.60 is: 8,315,745,932.40
Step by Step Solution
- Step 1: Write the proportion equation
5,640,576,503.20 : 8,460,864,754.80 = 5,543,830,621.60 : x - Step 2: Convert to fraction form
5,640,576,503.20/8,460,864,754.80 = 5,543,830,621.60/x - Step 3: Cross multiply
5,640,576,503.20x = 8,460,864,754.80 × 5,543,830,621.60 - Step 4: Simplify right side
5,640,576,503.20x = 46,905,601,112,876,417,024 - Step 5: Solve for x
x = 46,905,601,112,876,417,024/5,640,576,503.20 - Step 6: Final answer
x = 8,315,745,932.40
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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.