Finding the Fourth Proportional to 19,688,896.90, 27,170,682.74 and 10,868,353.21
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Solution
The fourth proportional to 19,688,896.90, 27,170,682.74 and 10,868,353.21 is: 14,998,330.20
Step by Step Solution
- Step 1: Write the proportion equation
19,688,896.90 : 27,170,682.74 = 10,868,353.21 : x - Step 2: Convert to fraction form
19,688,896.90/27,170,682.74 = 10,868,353.21/x - Step 3: Cross multiply
19,688,896.90x = 27,170,682.74 × 10,868,353.21 - Step 4: Simplify right side
19,688,896.90x = 295,300,576,975,170.62 - Step 5: Solve for x
x = 295,300,576,975,170.62/19,688,896.90 - Step 6: Final answer
x = 14,998,330.20
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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.