Finding the Fourth Proportional to 19,721,291.21, 29,581,937.36 and 5,344,358.48
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Solution
The fourth proportional to 19,721,291.21, 29,581,937.36 and 5,344,358.48 is: 8,016,537.87
Step by Step Solution
- Step 1: Write the proportion equation
19,721,291.21 : 29,581,937.36 = 5,344,358.48 : x - Step 2: Convert to fraction form
19,721,291.21/29,581,937.36 = 5,344,358.48/x - Step 3: Cross multiply
19,721,291.21x = 29,581,937.36 × 5,344,358.48 - Step 4: Simplify right side
19,721,291.21x = 158,096,477,784,744.81 - Step 5: Solve for x
x = 158,096,477,784,744.81/19,721,291.21 - Step 6: Final answer
x = 8,016,537.87
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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.