Finding the Fourth Proportional to 136,207,057.77, 187,969,710.47 and 74,331,382.05
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Solution
The fourth proportional to 136,207,057.77, 187,969,710.47 and 74,331,382.05 is: 102,579,474.16
Step by Step Solution
- Step 1: Write the proportion equation
136,207,057.77 : 187,969,710.47 = 74,331,382.05 : x - Step 2: Convert to fraction form
136,207,057.77/187,969,710.47 = 74,331,382.05/x - Step 3: Cross multiply
136,207,057.77x = 187,969,710.47 × 74,331,382.05 - Step 4: Simplify right side
136,207,057.77x = 13,972,048,362,401,798 - Step 5: Solve for x
x = 13,972,048,362,401,798/136,207,057.77 - Step 6: Final answer
x = 102,579,474.16
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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.