Finding the Fourth Proportional to 7,278,336,178.90, 10,917,504,268.35 and 4,827,440,511.70
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Solution
The fourth proportional to 7,278,336,178.90, 10,917,504,268.35 and 4,827,440,511.70 is: 7,241,160,767.55
Step by Step Solution
- Step 1: Write the proportion equation
7,278,336,178.90 : 10,917,504,268.35 = 4,827,440,511.70 : x - Step 2: Convert to fraction form
7,278,336,178.90/10,917,504,268.35 = 4,827,440,511.70/x - Step 3: Cross multiply
7,278,336,178.90x = 10,917,504,268.35 × 4,827,440,511.70 - Step 4: Simplify right side
7,278,336,178.90x = 52,703,602,391,690,461,184 - Step 5: Solve for x
x = 52,703,602,391,690,461,184/7,278,336,178.90 - Step 6: Final answer
x = 7,241,160,767.55
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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.