Finding the Fourth Proportional to 192,018,945.68, 264,986,814.12 and 103,912,921.28
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Solution
The fourth proportional to 192,018,945.68, 264,986,814.12 and 103,912,921.28 is: 143,400,193.45
Step by Step Solution
- Step 1: Write the proportion equation
192,018,945.68 : 264,986,814.12 = 103,912,921.28 : x - Step 2: Convert to fraction form
192,018,945.68/264,986,814.12 = 103,912,921.28/x - Step 3: Cross multiply
192,018,945.68x = 264,986,814.12 × 103,912,921.28 - Step 4: Simplify right side
192,018,945.68x = 27,535,553,955,889,552 - Step 5: Solve for x
x = 27,535,553,955,889,552/192,018,945.68 - Step 6: Final answer
x = 143,400,193.45
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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.