Finding the Fourth Proportional to 3,986,999,858.40, 5,502,117,530.16 and 2,202,894,359.52
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Solution
The fourth proportional to 3,986,999,858.40, 5,502,117,530.16 and 2,202,894,359.52 is: 3,040,026,110.63
Step by Step Solution
- Step 1: Write the proportion equation
3,986,999,858.40 : 5,502,117,530.16 = 2,202,894,359.52 : x - Step 2: Convert to fraction form
3,986,999,858.40/5,502,117,530.16 = 2,202,894,359.52/x - Step 3: Cross multiply
3,986,999,858.40x = 5,502,117,530.16 × 2,202,894,359.52 - Step 4: Simplify right side
3,986,999,858.40x = 12,120,583,672,605,577,216 - Step 5: Solve for x
x = 12,120,583,672,605,577,216/3,986,999,858.40 - Step 6: Final answer
x = 3,040,026,110.63
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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.