Finding the Fourth Proportional to 217,706,420,550.69, 326,560,663,696.59 and 66,612,480,918.08
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Solution
The fourth proportional to 217,706,420,550.69, 326,560,663,696.59 and 66,612,480,918.08 is: 99,919,037,408.54
Step by Step Solution
- Step 1: Write the proportion equation
217,706,420,550.69 : 326,560,663,696.59 = 66,612,480,918.08 : x - Step 2: Convert to fraction form
217,706,420,550.69/326,560,663,696.59 = 66,612,480,918.08/x - Step 3: Cross multiply
217,706,420,550.69x = 326,560,663,696.59 × 66,612,480,918.08 - Step 4: Simplify right side
217,706,420,550.69x = 21,753,015,979,083,011,457,024 - Step 5: Solve for x
x = 21,753,015,979,083,011,457,024/217,706,420,550.69 - Step 6: Final answer
x = 99,919,037,408.54
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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.