Finding the Fourth Proportional to 5,131,129.95, 7,081,710.53 and 2,955,249.63
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Solution
The fourth proportional to 5,131,129.95, 7,081,710.53 and 2,955,249.63 is: 4,078,677.14
Step by Step Solution
- Step 1: Write the proportion equation
5,131,129.95 : 7,081,710.53 = 2,955,249.63 : x - Step 2: Convert to fraction form
5,131,129.95/7,081,710.53 = 2,955,249.63/x - Step 3: Cross multiply
5,131,129.95x = 7,081,710.53 × 2,955,249.63 - Step 4: Simplify right side
5,131,129.95x = 20,928,222,408,773.36 - Step 5: Solve for x
x = 20,928,222,408,773.36/5,131,129.95 - Step 6: Final answer
x = 4,078,677.14
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1.5x scale
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.