Finding the Fourth Proportional to 5,681,157.80, 7,839,985.24 and 3,102,838.68
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Solution
The fourth proportional to 5,681,157.80, 7,839,985.24 and 3,102,838.68 is: 4,281,910.54
Step by Step Solution
- Step 1: Write the proportion equation
5,681,157.80 : 7,839,985.24 = 3,102,838.68 : x - Step 2: Convert to fraction form
5,681,157.80/7,839,985.24 = 3,102,838.68/x - Step 3: Cross multiply
5,681,157.80x = 7,839,985.24 × 3,102,838.68 - Step 4: Simplify right side
5,681,157.80x = 24,326,209,453,301.09 - Step 5: Solve for x
x = 24,326,209,453,301.09/5,681,157.80 - Step 6: Final answer
x = 4,281,910.54
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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.