Finding the Fourth Proportional to 4,752,756.30, 7,130,884.05 and 1,557,986.70
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Solution
The fourth proportional to 4,752,756.30, 7,130,884.05 and 1,557,986.70 is: 2,337,553.58
Step by Step Solution
- Step 1: Write the proportion equation
4,752,756.30 : 7,130,884.05 = 1,557,986.70 : x - Step 2: Convert to fraction form
4,752,756.30/7,130,884.05 = 1,557,986.70/x - Step 3: Cross multiply
4,752,756.30x = 7,130,884.05 × 1,557,986.70 - Step 4: Simplify right side
4,752,756.30x = 11,109,822,509,142.13 - Step 5: Solve for x
x = 11,109,822,509,142.13/4,752,756.30 - Step 6: Final answer
x = 2,337,553.58
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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.