Finding the Fourth Proportional to 7,742,711.75, 11,614,028.73 and 1,985,419.67
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Solution
The fourth proportional to 7,742,711.75, 11,614,028.73 and 1,985,419.67 is: 2,978,119.53
Step by Step Solution
- Step 1: Write the proportion equation
7,742,711.75 : 11,614,028.73 = 1,985,419.67 : x - Step 2: Convert to fraction form
7,742,711.75/11,614,028.73 = 1,985,419.67/x - Step 3: Cross multiply
7,742,711.75x = 11,614,028.73 × 1,985,419.67 - Step 4: Simplify right side
7,742,711.75x = 23,058,721,088,487.12 - Step 5: Solve for x
x = 23,058,721,088,487.12/7,742,711.75 - Step 6: Final answer
x = 2,978,119.53
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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.