Finding the Fourth Proportional to 84,602,878.50, 126,904,755.68 and 38,512,514.70
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Solution
The fourth proportional to 84,602,878.50, 126,904,755.68 and 38,512,514.70 is: 57,768,971.40
Step by Step Solution
- Step 1: Write the proportion equation
84,602,878.50 : 126,904,755.68 = 38,512,514.70 : x - Step 2: Convert to fraction form
84,602,878.50/126,904,755.68 = 38,512,514.70/x - Step 3: Cross multiply
84,602,878.50x = 126,904,755.68 × 38,512,514.70 - Step 4: Simplify right side
84,602,878.50x = 4,887,421,268,433,346 - Step 5: Solve for x
x = 4,887,421,268,433,346/84,602,878.50 - Step 6: Final answer
x = 57,768,971.40
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.