Finding the Fourth Proportional to 258,546,974.91, 387,791,814.36 and 92,543,849.81
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Solution
The fourth proportional to 258,546,974.91, 387,791,814.36 and 92,543,849.81 is: 138,805,520.51
Step by Step Solution
- Step 1: Write the proportion equation
258,546,974.91 : 387,791,814.36 = 92,543,849.81 : x - Step 2: Convert to fraction form
258,546,974.91/387,791,814.36 = 92,543,849.81/x - Step 3: Cross multiply
258,546,974.91x = 387,791,814.36 × 92,543,849.81 - Step 4: Simplify right side
258,546,974.91x = 35,887,747,427,722,868 - Step 5: Solve for x
x = 35,887,747,427,722,868/258,546,974.91 - Step 6: Final answer
x = 138,805,520.51
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.