Finding the Fourth Proportional to 13,643,171.12, 18,827,636.28 and 7,531,649.84
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Solution
The fourth proportional to 13,643,171.12, 18,827,636.28 and 7,531,649.84 is: 10,393,709.98
Step by Step Solution
- Step 1: Write the proportion equation
13,643,171.12 : 18,827,636.28 = 7,531,649.84 : x - Step 2: Convert to fraction form
13,643,171.12/18,827,636.28 = 7,531,649.84/x - Step 3: Cross multiply
13,643,171.12x = 18,827,636.28 × 7,531,649.84 - Step 4: Simplify right side
13,643,171.12x = 141,803,163,775,840.19 - Step 5: Solve for x
x = 141,803,163,775,840.19/13,643,171.12 - Step 6: Final answer
x = 10,393,709.98
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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.