Finding the Fourth Proportional to 7,385,830.80, 10,194,147.12 and 4,331,029.20
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Solution
The fourth proportional to 7,385,830.80, 10,194,147.12 and 4,331,029.20 is: 5,977,817.53
Step by Step Solution
- Step 1: Write the proportion equation
7,385,830.80 : 10,194,147.12 = 4,331,029.20 : x - Step 2: Convert to fraction form
7,385,830.80/10,194,147.12 = 4,331,029.20/x - Step 3: Cross multiply
7,385,830.80x = 10,194,147.12 × 4,331,029.20 - Step 4: Simplify right side
7,385,830.80x = 44,151,148,845,815.91 - Step 5: Solve for x
x = 44,151,148,845,815.91/7,385,830.80 - Step 6: Final answer
x = 5,977,817.53
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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.