Finding the Fourth Proportional to 8,216,423.81, 11,338,998.72 and 4,545,277.09
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Solution
The fourth proportional to 8,216,423.81, 11,338,998.72 and 4,545,277.09 is: 6,272,667.08
Step by Step Solution
- Step 1: Write the proportion equation
8,216,423.81 : 11,338,998.72 = 4,545,277.09 : x - Step 2: Convert to fraction form
8,216,423.81/11,338,998.72 = 4,545,277.09/x - Step 3: Cross multiply
8,216,423.81x = 11,338,998.72 × 4,545,277.09 - Step 4: Simplify right side
8,216,423.81x = 51,538,891,136,773.86 - Step 5: Solve for x
x = 51,538,891,136,773.86/8,216,423.81 - Step 6: Final answer
x = 6,272,667.08
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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.