Finding the Fourth Proportional to 7,001,528,515.12, 9,662,138,461.42 and 3,786,438,504.80
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Solution
The fourth proportional to 7,001,528,515.12, 9,662,138,461.42 and 3,786,438,504.80 is: 5,225,300,879.66
Step by Step Solution
- Step 1: Write the proportion equation
7,001,528,515.12 : 9,662,138,461.42 = 3,786,438,504.80 : x - Step 2: Convert to fraction form
7,001,528,515.12/9,662,138,461.42 = 3,786,438,504.80/x - Step 3: Cross multiply
7,001,528,515.12x = 9,662,138,461.42 × 3,786,438,504.80 - Step 4: Simplify right side
7,001,528,515.12x = 36,585,093,109,029,720,064 - Step 5: Solve for x
x = 36,585,093,109,029,720,064/7,001,528,515.12 - Step 6: Final answer
x = 5,225,300,879.66
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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.