Finding the Fourth Proportional to 99,661,826.10, 149,492,739.15 and 98,989,979.70
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Solution
The fourth proportional to 99,661,826.10, 149,492,739.15 and 98,989,979.70 is: 148,484,969.55
Step by Step Solution
- Step 1: Write the proportion equation
99,661,826.10 : 149,492,739.15 = 98,989,979.70 : x - Step 2: Convert to fraction form
99,661,826.10/149,492,739.15 = 98,989,979.70/x - Step 3: Cross multiply
99,661,826.10x = 149,492,739.15 × 98,989,979.70 - Step 4: Simplify right side
99,661,826.10x = 14,798,283,213,755,896 - Step 5: Solve for x
x = 14,798,283,213,755,896/99,661,826.10 - Step 6: Final answer
x = 148,484,969.55
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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.