Finding the Fourth Proportional to 144,480,548.99, 199,382,146.35 and 78,399,366.77
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Solution
The fourth proportional to 144,480,548.99, 199,382,146.35 and 78,399,366.77 is: 108,190,577.41
Step by Step Solution
- Step 1: Write the proportion equation
144,480,548.99 : 199,382,146.35 = 78,399,366.77 : x - Step 2: Convert to fraction form
144,480,548.99/199,382,146.35 = 78,399,366.77/x - Step 3: Cross multiply
144,480,548.99x = 199,382,146.35 × 78,399,366.77 - Step 4: Simplify right side
144,480,548.99x = 15,631,434,019,083,466 - Step 5: Solve for x
x = 15,631,434,019,083,466/144,480,548.99 - Step 6: Final answer
x = 108,190,577.41
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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.