Finding the Fourth Proportional to 7,644,638.68, 10,549,603.08 and 4,206,879.72
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Solution
The fourth proportional to 7,644,638.68, 10,549,603.08 and 4,206,879.72 is: 5,805,494.95
Step by Step Solution
- Step 1: Write the proportion equation
7,644,638.68 : 10,549,603.08 = 4,206,879.72 : x - Step 2: Convert to fraction form
7,644,638.68/10,549,603.08 = 4,206,879.72/x - Step 3: Cross multiply
7,644,638.68x = 10,549,603.08 × 4,206,879.72 - Step 4: Simplify right side
7,644,638.68x = 44,380,911,251,301.54 - Step 5: Solve for x
x = 44,380,911,251,301.54/7,644,638.68 - Step 6: Final answer
x = 5,805,494.95
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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.