Finding the Fourth Proportional to 7,906,376,067.84, 10,910,819,693.40 and 4,289,399,619.18
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Solution
The fourth proportional to 7,906,376,067.84, 10,910,819,693.40 and 4,289,399,619.18 is: 5,919,382,715.45
Step by Step Solution
- Step 1: Write the proportion equation
7,906,376,067.84 : 10,910,819,693.40 = 4,289,399,619.18 : x - Step 2: Convert to fraction form
7,906,376,067.84/10,910,819,693.40 = 4,289,399,619.18/x - Step 3: Cross multiply
7,906,376,067.84x = 10,910,819,693.40 × 4,289,399,619.18 - Step 4: Simplify right side
7,906,376,067.84x = 46,800,865,837,811,597,312 - Step 5: Solve for x
x = 46,800,865,837,811,597,312/7,906,376,067.84 - Step 6: Final answer
x = 5,919,382,715.45
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.