Finding the Fourth Proportional to 107,789,479.20, 161,707,838.42 and 53,228,203.20
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Solution
The fourth proportional to 107,789,479.20, 161,707,838.42 and 53,228,203.20 is: 79,853,968.55
Step by Step Solution
- Step 1: Write the proportion equation
107,789,479.20 : 161,707,838.42 = 53,228,203.20 : x - Step 2: Convert to fraction form
107,789,479.20/161,707,838.42 = 53,228,203.20/x - Step 3: Cross multiply
107,789,479.20x = 161,707,838.42 × 53,228,203.20 - Step 4: Simplify right side
107,789,479.20x = 8,607,417,682,452,527 - Step 5: Solve for x
x = 8,607,417,682,452,527/107,789,479.20 - Step 6: Final answer
x = 79,853,968.55
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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.