Finding the Fourth Proportional to 8,921,205,785.68, 12,311,270,298.48 and 4,907,181,451.84
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Solution
The fourth proportional to 8,921,205,785.68, 12,311,270,298.48 and 4,907,181,451.84 is: 6,771,913,876.74
Step by Step Solution
- Step 1: Write the proportion equation
8,921,205,785.68 : 12,311,270,298.48 = 4,907,181,451.84 : x - Step 2: Convert to fraction form
8,921,205,785.68/12,311,270,298.48 = 4,907,181,451.84/x - Step 3: Cross multiply
8,921,205,785.68x = 12,311,270,298.48 × 4,907,181,451.84 - Step 4: Simplify right side
8,921,205,785.68x = 60,413,637,257,289,752,576 - Step 5: Solve for x
x = 60,413,637,257,289,752,576/8,921,205,785.68 - Step 6: Final answer
x = 6,771,913,876.74
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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.