Finding the Fourth Proportional to 5,329,828.47, 7,355,142.05 and 2,882,442.09
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Solution
The fourth proportional to 5,329,828.47, 7,355,142.05 and 2,882,442.09 is: 3,977,758.60
Step by Step Solution
- Step 1: Write the proportion equation
5,329,828.47 : 7,355,142.05 = 2,882,442.09 : x - Step 2: Convert to fraction form
5,329,828.47/7,355,142.05 = 2,882,442.09/x - Step 3: Cross multiply
5,329,828.47x = 7,355,142.05 × 2,882,442.09 - Step 4: Simplify right side
5,329,828.47x = 21,200,771,022,848.88 - Step 5: Solve for x
x = 21,200,771,022,848.88/5,329,828.47 - Step 6: Final answer
x = 3,977,758.60
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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.