Finding the Fourth Proportional to 220,390,100.79, 304,129,206.19 and 119,918,952.80
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Solution
The fourth proportional to 220,390,100.79, 304,129,206.19 and 119,918,952.80 is: 165,483,185.45
Step by Step Solution
- Step 1: Write the proportion equation
220,390,100.79 : 304,129,206.19 = 119,918,952.80 : x - Step 2: Convert to fraction form
220,390,100.79/304,129,206.19 = 119,918,952.80/x - Step 3: Cross multiply
220,390,100.79x = 304,129,206.19 × 119,918,952.80 - Step 4: Simplify right side
220,390,100.79x = 36,470,855,921,295,872 - Step 5: Solve for x
x = 36,470,855,921,295,872/220,390,100.79 - Step 6: Final answer
x = 165,483,185.45
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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.