Finding the Fourth Proportional to 7,389,860.80, 11,066,128.80 and 4,851,774.40
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Solution
The fourth proportional to 7,389,860.80, 11,066,128.80 and 4,851,774.40 is: 7,265,408.90
Step by Step Solution
- Step 1: Write the proportion equation
7,389,860.80 : 11,066,128.80 = 4,851,774.40 : x - Step 2: Convert to fraction form
7,389,860.80/11,066,128.80 = 4,851,774.40/x - Step 3: Cross multiply
7,389,860.80x = 11,066,128.80 × 4,851,774.40 - Step 4: Simplify right side
7,389,860.80x = 53,690,360,418,942.73 - Step 5: Solve for x
x = 53,690,360,418,942.73/7,389,860.80 - Step 6: Final answer
x = 7,265,408.90
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1.5x scale
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.