Finding the Fourth Proportional to 15,401,393.60, 21,254,173.81 and 8,431,953.53
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Solution
The fourth proportional to 15,401,393.60, 21,254,173.81 and 8,431,953.53 is: 11,636,233.09
Step by Step Solution
- Step 1: Write the proportion equation
15,401,393.60 : 21,254,173.81 = 8,431,953.53 : x - Step 2: Convert to fraction form
15,401,393.60/21,254,173.81 = 8,431,953.53/x - Step 3: Cross multiply
15,401,393.60x = 21,254,173.81 × 8,431,953.53 - Step 4: Simplify right side
15,401,393.60x = 179,214,205,757,112.31 - Step 5: Solve for x
x = 179,214,205,757,112.31/15,401,393.60 - Step 6: Final answer
x = 11,636,233.09
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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.