Finding the Fourth Proportional to 8,610,367,428.70, 12,915,551,143.05 and 2,067,265,836.70
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Solution
The fourth proportional to 8,610,367,428.70, 12,915,551,143.05 and 2,067,265,836.70 is: 3,100,898,755.05
Step by Step Solution
- Step 1: Write the proportion equation
8,610,367,428.70 : 12,915,551,143.05 = 2,067,265,836.70 : x - Step 2: Convert to fraction form
8,610,367,428.70/12,915,551,143.05 = 2,067,265,836.70/x - Step 3: Cross multiply
8,610,367,428.70x = 12,915,551,143.05 × 2,067,265,836.70 - Step 4: Simplify right side
8,610,367,428.70x = 26,699,877,640,178,896,896 - Step 5: Solve for x
x = 26,699,877,640,178,896,896/8,610,367,428.70 - Step 6: Final answer
x = 3,100,898,755.05
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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.