Finding the Fourth Proportional to 144,645,811.98, 199,612,838.10 and 85,120,268.10
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Solution
The fourth proportional to 144,645,811.98, 199,612,838.10 and 85,120,268.10 is: 117,466,921.87
Step by Step Solution
- Step 1: Write the proportion equation
144,645,811.98 : 199,612,838.10 = 85,120,268.10 : x - Step 2: Convert to fraction form
144,645,811.98/199,612,838.10 = 85,120,268.10/x - Step 3: Cross multiply
144,645,811.98x = 199,612,838.10 × 85,120,268.10 - Step 4: Simplify right side
144,645,811.98x = 16,991,098,294,844,546 - Step 5: Solve for x
x = 16,991,098,294,844,546/144,645,811.98 - Step 6: Final answer
x = 117,466,921.87
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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.