Finding the Fourth Proportional to 313,531,918.11, 432,649,537.38 and 174,294,201.15
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Solution
The fourth proportional to 313,531,918.11, 432,649,537.38 and 174,294,201.15 is: 240,512,372.55
Step by Step Solution
- Step 1: Write the proportion equation
313,531,918.11 : 432,649,537.38 = 174,294,201.15 : x - Step 2: Convert to fraction form
313,531,918.11/432,649,537.38 = 174,294,201.15/x - Step 3: Cross multiply
313,531,918.11x = 432,649,537.38 × 174,294,201.15 - Step 4: Simplify right side
313,531,918.11x = 75,408,305,495,564,160 - Step 5: Solve for x
x = 75,408,305,495,564,160/313,531,918.11 - Step 6: Final answer
x = 240,512,372.55
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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.