Finding the Fourth Proportional to 99,639,415.95, 137,502,452.60 and 55,586,415
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Solution
The fourth proportional to 99,639,415.95, 137,502,452.60 and 55,586,415 is: 76,709,285.38
Step by Step Solution
- Step 1: Write the proportion equation
99,639,415.95 : 137,502,452.60 = 55,586,415 : x - Step 2: Convert to fraction form
99,639,415.95/137,502,452.60 = 55,586,415/x - Step 3: Cross multiply
99,639,415.95x = 137,502,452.60 × 55,586,415 - Step 4: Simplify right side
99,639,415.95x = 7,643,268,393,463,497 - Step 5: Solve for x
x = 7,643,268,393,463,497/99,639,415.95 - Step 6: Final answer
x = 76,709,285.38
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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.