Finding the Fourth Proportional to 7,700,649.24, 10,627,021.53 and 4,215,929.64
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Solution
The fourth proportional to 7,700,649.24, 10,627,021.53 and 4,215,929.64 is: 5,818,051.65
Step by Step Solution
- Step 1: Write the proportion equation
7,700,649.24 : 10,627,021.53 = 4,215,929.64 : x - Step 2: Convert to fraction form
7,700,649.24/10,627,021.53 = 4,215,929.64/x - Step 3: Cross multiply
7,700,649.24x = 10,627,021.53 × 4,215,929.64 - Step 4: Simplify right side
7,700,649.24x = 44,802,775,053,245.14 - Step 5: Solve for x
x = 44,802,775,053,245.14/7,700,649.24 - Step 6: Final answer
x = 5,818,051.65
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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.