Finding the Fourth Proportional to 215,012,985.57, 296,743,110.39 and 122,207,443.74
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Solution
The fourth proportional to 215,012,985.57, 296,743,110.39 and 122,207,443.74 is: 168,660,589.83
Step by Step Solution
- Step 1: Write the proportion equation
215,012,985.57 : 296,743,110.39 = 122,207,443.74 : x - Step 2: Convert to fraction form
215,012,985.57/296,743,110.39 = 122,207,443.74/x - Step 3: Cross multiply
215,012,985.57x = 296,743,110.39 × 122,207,443.74 - Step 4: Simplify right side
215,012,985.57x = 36,264,216,968,218,528 - Step 5: Solve for x
x = 36,264,216,968,218,528/215,012,985.57 - Step 6: Final answer
x = 168,660,589.83
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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.