Finding the Fourth Proportional to 1,100,727,793.70, 1,651,091,690.55 and 445,677,553.70
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Solution
The fourth proportional to 1,100,727,793.70, 1,651,091,690.55 and 445,677,553.70 is: 668,516,330.55
Step by Step Solution
- Step 1: Write the proportion equation
1,100,727,793.70 : 1,651,091,690.55 = 445,677,553.70 : x - Step 2: Convert to fraction form
1,100,727,793.70/1,651,091,690.55 = 445,677,553.70/x - Step 3: Cross multiply
1,100,727,793.70x = 1,651,091,690.55 × 445,677,553.70 - Step 4: Simplify right side
1,100,727,793.70x = 735,854,505,578,721,408 - Step 5: Solve for x
x = 735,854,505,578,721,408/1,100,727,793.70 - Step 6: Final answer
x = 668,516,330.55
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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.