Finding the Fourth Proportional to 7,203,480,427.10, 9,941,113,673.16 and 3,988,390,389.50
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Solution
The fourth proportional to 7,203,480,427.10, 9,941,113,673.16 and 3,988,390,389.50 is: 5,504,150,755.49
Step by Step Solution
- Step 1: Write the proportion equation
7,203,480,427.10 : 9,941,113,673.16 = 3,988,390,389.50 : x - Step 2: Convert to fraction form
7,203,480,427.10/9,941,113,673.16 = 3,988,390,389.50/x - Step 3: Cross multiply
7,203,480,427.10x = 9,941,113,673.16 × 3,988,390,389.50 - Step 4: Simplify right side
7,203,480,427.10x = 39,649,042,234,958,389,248 - Step 5: Solve for x
x = 39,649,042,234,958,389,248/7,203,480,427.10 - Step 6: Final answer
x = 5,504,150,755.49
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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.