Finding the Fourth Proportional to 7,202,823,561, 9,939,896,514.18 and 3,906,297,225
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Solution
The fourth proportional to 7,202,823,561, 9,939,896,514.18 and 3,906,297,225 is: 5,390,690,170.50
Step by Step Solution
- Step 1: Write the proportion equation
7,202,823,561 : 9,939,896,514.18 = 3,906,297,225 : x - Step 2: Convert to fraction form
7,202,823,561/9,939,896,514.18 = 3,906,297,225/x - Step 3: Cross multiply
7,202,823,561x = 9,939,896,514.18 × 3,906,297,225 - Step 4: Simplify right side
7,202,823,561x = 38,828,190,170,128,506,880 - Step 5: Solve for x
x = 38,828,190,170,128,506,880/7,202,823,561 - Step 6: Final answer
x = 5,390,690,170.50
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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.