Finding the Fourth Proportional to 8,222,475,485.18, 12,312,471,755.84 and 5,674,869,179.05
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Solution
The fourth proportional to 8,222,475,485.18, 12,312,471,755.84 and 5,674,869,179.05 is: 8,497,643,636.78
Step by Step Solution
- Step 1: Write the proportion equation
8,222,475,485.18 : 12,312,471,755.84 = 5,674,869,179.05 : x - Step 2: Convert to fraction form
8,222,475,485.18/12,312,471,755.84 = 5,674,869,179.05/x - Step 3: Cross multiply
8,222,475,485.18x = 12,312,471,755.84 × 5,674,869,179.05 - Step 4: Simplify right side
8,222,475,485.18x = 69,871,666,485,177,950,208 - Step 5: Solve for x
x = 69,871,666,485,177,950,208/8,222,475,485.18 - Step 6: Final answer
x = 8,497,643,636.78
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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.