Finding the Fourth Proportional to 7,677,155,429.10, 11,515,733,143.65 and 6,368,535,110.70
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Solution
The fourth proportional to 7,677,155,429.10, 11,515,733,143.65 and 6,368,535,110.70 is: 9,552,802,666.05
Step by Step Solution
- Step 1: Write the proportion equation
7,677,155,429.10 : 11,515,733,143.65 = 6,368,535,110.70 : x - Step 2: Convert to fraction form
7,677,155,429.10/11,515,733,143.65 = 6,368,535,110.70/x - Step 3: Cross multiply
7,677,155,429.10x = 11,515,733,143.65 × 6,368,535,110.70 - Step 4: Simplify right side
7,677,155,429.10x = 73,338,350,850,786,705,408 - Step 5: Solve for x
x = 73,338,350,850,786,705,408/7,677,155,429.10 - Step 6: Final answer
x = 9,552,802,666.05
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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.