Finding the Fourth Proportional to 187,081,364.16, 258,044,181.12 and 121,979,448
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Solution
The fourth proportional to 187,081,364.16, 258,044,181.12 and 121,979,448 is: 168,248,114.47
Step by Step Solution
- Step 1: Write the proportion equation
187,081,364.16 : 258,044,181.12 = 121,979,448 : x - Step 2: Convert to fraction form
187,081,364.16/258,044,181.12 = 121,979,448/x - Step 3: Cross multiply
187,081,364.16x = 258,044,181.12 × 121,979,448 - Step 4: Simplify right side
187,081,364.16x = 31,476,086,772,629,624 - Step 5: Solve for x
x = 31,476,086,772,629,624/187,081,364.16 - Step 6: Final answer
x = 168,248,114.47
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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.