Finding the Fourth Proportional to 10,365,420.58, 15,551,119.23 and 3,178,015.18
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Solution
The fourth proportional to 10,365,420.58, 15,551,119.23 and 3,178,015.18 is: 4,767,938.99
Step by Step Solution
- Step 1: Write the proportion equation
10,365,420.58 : 15,551,119.23 = 3,178,015.18 : x - Step 2: Convert to fraction form
10,365,420.58/15,551,119.23 = 3,178,015.18/x - Step 3: Cross multiply
10,365,420.58x = 15,551,119.23 × 3,178,015.18 - Step 4: Simplify right side
10,365,420.58x = 49,421,692,978,929.91 - Step 5: Solve for x
x = 49,421,692,978,929.91/10,365,420.58 - Step 6: Final answer
x = 4,767,938.99
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.