Finding the Fourth Proportional to 5,355,442,020.70, 8,033,163,031.05 and 4,773,832,990.30
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Solution
The fourth proportional to 5,355,442,020.70, 8,033,163,031.05 and 4,773,832,990.30 is: 7,160,749,485.45
Step by Step Solution
- Step 1: Write the proportion equation
5,355,442,020.70 : 8,033,163,031.05 = 4,773,832,990.30 : x - Step 2: Convert to fraction form
5,355,442,020.70/8,033,163,031.05 = 4,773,832,990.30/x - Step 3: Cross multiply
5,355,442,020.70x = 8,033,163,031.05 × 4,773,832,990.30 - Step 4: Simplify right side
5,355,442,020.70x = 38,348,978,694,084,837,376 - Step 5: Solve for x
x = 38,348,978,694,084,837,376/5,355,442,020.70 - Step 6: Final answer
x = 7,160,749,485.45
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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.