Finding the Fourth Proportional to 187,081,368.16, 258,044,186.64 and 121,979,452
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Solution
The fourth proportional to 187,081,368.16, 258,044,186.64 and 121,979,452 is: 168,248,119.99
Step by Step Solution
- Step 1: Write the proportion equation
187,081,368.16 : 258,044,186.64 = 121,979,452 : x - Step 2: Convert to fraction form
187,081,368.16/258,044,186.64 = 121,979,452/x - Step 3: Cross multiply
187,081,368.16x = 258,044,186.64 × 121,979,452 - Step 4: Simplify right side
187,081,368.16x = 31,476,088,478,132,920 - Step 5: Solve for x
x = 31,476,088,478,132,920/187,081,368.16 - Step 6: Final answer
x = 168,248,119.99
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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.