Finding the Fourth Proportional to 6,643,135.08, 9,167,720.71 and 3,889,564.88
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Solution
The fourth proportional to 6,643,135.08, 9,167,720.71 and 3,889,564.88 is: 5,367,713.30
Step by Step Solution
- Step 1: Write the proportion equation
6,643,135.08 : 9,167,720.71 = 3,889,564.88 : x - Step 2: Convert to fraction form
6,643,135.08/9,167,720.71 = 3,889,564.88/x - Step 3: Cross multiply
6,643,135.08x = 9,167,720.71 × 3,889,564.88 - Step 4: Simplify right side
6,643,135.08x = 35,658,444,503,264.66 - Step 5: Solve for x
x = 35,658,444,503,264.66/6,643,135.08 - Step 6: Final answer
x = 5,367,713.30
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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.