Finding the Fourth Proportional to 220,556,679.36, 304,365,717 and 121,435,402.56
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Solution
The fourth proportional to 220,556,679.36, 304,365,717 and 121,435,402.56 is: 167,579,478.78
Step by Step Solution
- Step 1: Write the proportion equation
220,556,679.36 : 304,365,717 = 121,435,402.56 : x - Step 2: Convert to fraction form
220,556,679.36/304,365,717 = 121,435,402.56/x - Step 3: Cross multiply
220,556,679.36x = 304,365,717 × 121,435,402.56 - Step 4: Simplify right side
220,556,679.36x = 36,960,773,369,358,040 - Step 5: Solve for x
x = 36,960,773,369,358,040/220,556,679.36 - Step 6: Final answer
x = 167,579,478.78
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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.