Finding the Fourth Proportional to 173,990,265.21, 240,104,746.44 and 129,535,010.51
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Solution
The fourth proportional to 173,990,265.21, 240,104,746.44 and 129,535,010.51 is: 178,756,959.85
Step by Step Solution
- Step 1: Write the proportion equation
173,990,265.21 : 240,104,746.44 = 129,535,010.51 : x - Step 2: Convert to fraction form
173,990,265.21/240,104,746.44 = 129,535,010.51/x - Step 3: Cross multiply
173,990,265.21x = 240,104,746.44 × 129,535,010.51 - Step 4: Simplify right side
173,990,265.21x = 31,101,970,852,405,760 - Step 5: Solve for x
x = 31,101,970,852,405,760/173,990,265.21 - Step 6: Final answer
x = 178,756,959.85
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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.