Finding the Fourth Proportional to 7,031,023.86, 9,702,741.44 and 3,891,293.62
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Solution
The fourth proportional to 7,031,023.86, 9,702,741.44 and 3,891,293.62 is: 5,369,945.64
Step by Step Solution
- Step 1: Write the proportion equation
7,031,023.86 : 9,702,741.44 = 3,891,293.62 : x - Step 2: Convert to fraction form
7,031,023.86/9,702,741.44 = 3,891,293.62/x - Step 3: Cross multiply
7,031,023.86x = 9,702,741.44 × 3,891,293.62 - Step 4: Simplify right side
7,031,023.86x = 37,756,215,896,521.96 - Step 5: Solve for x
x = 37,756,215,896,521.96/7,031,023.86 - Step 6: Final answer
x = 5,369,945.64
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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.