Finding the Fourth Proportional to 5,329,347.40, 7,994,798.70 and 2,489,552.20
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Solution
The fourth proportional to 5,329,347.40, 7,994,798.70 and 2,489,552.20 is: 3,734,691.55
Step by Step Solution
- Step 1: Write the proportion equation
5,329,347.40 : 7,994,798.70 = 2,489,552.20 : x - Step 2: Convert to fraction form
5,329,347.40/7,994,798.70 = 2,489,552.20/x - Step 3: Cross multiply
5,329,347.40x = 7,994,798.70 × 2,489,552.20 - Step 4: Simplify right side
5,329,347.40x = 19,903,468,692,142.14 - Step 5: Solve for x
x = 19,903,468,692,142.14/5,329,347.40 - Step 6: Final answer
x = 3,734,691.55
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.