Finding the Fourth Proportional to 5,615,197.80, 7,748,972.91 and 3,036,878.55
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Solution
The fourth proportional to 5,615,197.80, 7,748,972.91 and 3,036,878.55 is: 4,190,892.37
Step by Step Solution
- Step 1: Write the proportion equation
5,615,197.80 : 7,748,972.91 = 3,036,878.55 : x - Step 2: Convert to fraction form
5,615,197.80/7,748,972.91 = 3,036,878.55/x - Step 3: Cross multiply
5,615,197.80x = 7,748,972.91 × 3,036,878.55 - Step 4: Simplify right side
5,615,197.80x = 23,532,689,614,910.08 - Step 5: Solve for x
x = 23,532,689,614,910.08/5,615,197.80 - Step 6: Final answer
x = 4,190,892.37
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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.