Finding the Fourth Proportional to 7,873,839.12, 10,865,898.12 and 4,252,167.12
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Solution
The fourth proportional to 7,873,839.12, 10,865,898.12 and 4,252,167.12 is: 5,867,990.70
Step by Step Solution
- Step 1: Write the proportion equation
7,873,839.12 : 10,865,898.12 = 4,252,167.12 : x - Step 2: Convert to fraction form
7,873,839.12/10,865,898.12 = 4,252,167.12/x - Step 3: Cross multiply
7,873,839.12x = 10,865,898.12 × 4,252,167.12 - Step 4: Simplify right side
7,873,839.12x = 46,203,614,715,133.81 - Step 5: Solve for x
x = 46,203,614,715,133.81/7,873,839.12 - Step 6: Final answer
x = 5,867,990.70
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1.5x scale
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.