Finding the Fourth Proportional to 7,539,638.20, 10,404,745.86 and 4,101,903.84
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Solution
The fourth proportional to 7,539,638.20, 10,404,745.86 and 4,101,903.84 is: 5,660,651.86
Step by Step Solution
- Step 1: Write the proportion equation
7,539,638.20 : 10,404,745.86 = 4,101,903.84 : x - Step 2: Convert to fraction form
7,539,638.20/10,404,745.86 = 4,101,903.84/x - Step 3: Cross multiply
7,539,638.20x = 10,404,745.86 × 4,101,903.84 - Step 4: Simplify right side
7,539,638.20x = 42,679,266,997,358.10 - Step 5: Solve for x
x = 42,679,266,997,358.10/7,539,638.20 - Step 6: Final answer
x = 5,660,651.86
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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.