Finding the Fourth Proportional to 163,278,108.69, 225,323,802.18 and 89,939,250.69
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Solution
The fourth proportional to 163,278,108.69, 225,323,802.18 and 89,939,250.69 is: 124,116,172.67
Step by Step Solution
- Step 1: Write the proportion equation
163,278,108.69 : 225,323,802.18 = 89,939,250.69 : x - Step 2: Convert to fraction form
163,278,108.69/225,323,802.18 = 89,939,250.69/x - Step 3: Cross multiply
163,278,108.69x = 225,323,802.18 × 89,939,250.69 - Step 4: Simplify right side
163,278,108.69x = 20,265,453,930,690,988 - Step 5: Solve for x
x = 20,265,453,930,690,988/163,278,108.69 - Step 6: Final answer
x = 124,116,172.67
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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.