Finding the Fourth Proportional to 7,998,938.74, 11,038,456.92 and 4,327,774.75
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Solution
The fourth proportional to 7,998,938.74, 11,038,456.92 and 4,327,774.75 is: 5,972,286.66
Step by Step Solution
- Step 1: Write the proportion equation
7,998,938.74 : 11,038,456.92 = 4,327,774.75 : x - Step 2: Convert to fraction form
7,998,938.74/11,038,456.92 = 4,327,774.75/x - Step 3: Cross multiply
7,998,938.74x = 11,038,456.92 × 4,327,774.75 - Step 4: Simplify right side
7,998,938.74x = 47,771,955,137,338.77 - Step 5: Solve for x
x = 47,771,955,137,338.77/7,998,938.74 - Step 6: Final answer
x = 5,972,286.66
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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.