Finding the Fourth Proportional to 1,120,167,954.41, 1,545,791,241.49 and 618,365,960.26
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Solution
The fourth proportional to 1,120,167,954.41, 1,545,791,241.49 and 618,365,960.26 is: 853,322,648.31
Step by Step Solution
- Step 1: Write the proportion equation
1,120,167,954.41 : 1,545,791,241.49 = 618,365,960.26 : x - Step 2: Convert to fraction form
1,120,167,954.41/1,545,791,241.49 = 618,365,960.26/x - Step 3: Cross multiply
1,120,167,954.41x = 1,545,791,241.49 × 618,365,960.26 - Step 4: Simplify right side
1,120,167,954.41x = 955,864,685,400,051,072 - Step 5: Solve for x
x = 955,864,685,400,051,072/1,120,167,954.41 - Step 6: Final answer
x = 853,322,648.31
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1.5x scale
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.