Finding the Fourth Proportional to 220,626,449.99, 304,460,786.71 and 121,516,427.06
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Solution
The fourth proportional to 220,626,449.99, 304,460,786.71 and 121,516,427.06 is: 167,690,623.60
Step by Step Solution
- Step 1: Write the proportion equation
220,626,449.99 : 304,460,786.71 = 121,516,427.06 : x - Step 2: Convert to fraction form
220,626,449.99/304,460,786.71 = 121,516,427.06/x - Step 3: Cross multiply
220,626,449.99x = 304,460,786.71 × 121,516,427.06 - Step 4: Simplify right side
220,626,449.99x = 36,996,986,980,875,928 - Step 5: Solve for x
x = 36,996,986,980,875,928/220,626,449.99 - Step 6: Final answer
x = 167,690,623.60
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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.