Finding the Fourth Proportional to 487,649,647.96, 672,956,518.66 and 264,631,329.26
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Solution
The fourth proportional to 487,649,647.96, 672,956,518.66 and 264,631,329.26 is: 365,191,236.80
Step by Step Solution
- Step 1: Write the proportion equation
487,649,647.96 : 672,956,518.66 = 264,631,329.26 : x - Step 2: Convert to fraction form
487,649,647.96/672,956,518.66 = 264,631,329.26/x - Step 3: Cross multiply
487,649,647.96x = 672,956,518.66 × 264,631,329.26 - Step 4: Simplify right side
487,649,647.96x = 178,085,378,066,253,408 - Step 5: Solve for x
x = 178,085,378,066,253,408/487,649,647.96 - Step 6: Final answer
x = 365,191,236.80
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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.