Finding the Fourth Proportional to 5,390,907.08, 7,447,321.68 and 4,664,493.68
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Solution
The fourth proportional to 5,390,907.08, 7,447,321.68 and 4,664,493.68 is: 6,443,810.73
Step by Step Solution
- Step 1: Write the proportion equation
5,390,907.08 : 7,447,321.68 = 4,664,493.68 : x - Step 2: Convert to fraction form
5,390,907.08/7,447,321.68 = 4,664,493.68/x - Step 3: Cross multiply
5,390,907.08x = 7,447,321.68 × 4,664,493.68 - Step 4: Simplify right side
5,390,907.08x = 34,737,984,909,286.98 - Step 5: Solve for x
x = 34,737,984,909,286.98/5,390,907.08 - Step 6: Final answer
x = 6,443,810.73
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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.