Finding the Fourth Proportional to 220,766,689.13, 304,644,301.63 and 121,641,889.40
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Solution
The fourth proportional to 220,766,689.13, 304,644,301.63 and 121,641,889.40 is: 167,858,242.52
Step by Step Solution
- Step 1: Write the proportion equation
220,766,689.13 : 304,644,301.63 = 121,641,889.40 : x - Step 2: Convert to fraction form
220,766,689.13/304,644,301.63 = 121,641,889.40/x - Step 3: Cross multiply
220,766,689.13x = 304,644,301.63 × 121,641,889.40 - Step 4: Simplify right side
220,766,689.13x = 37,057,508,444,531,792 - Step 5: Solve for x
x = 37,057,508,444,531,792/220,766,689.13 - Step 6: Final answer
x = 167,858,242.52
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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.