Finding the Fourth Proportional to 11,810,920.72, 16,299,070.68 and 6,378,412.72
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Solution
The fourth proportional to 11,810,920.72, 16,299,070.68 and 6,378,412.72 is: 8,802,209.60
Step by Step Solution
- Step 1: Write the proportion equation
11,810,920.72 : 16,299,070.68 = 6,378,412.72 : x - Step 2: Convert to fraction form
11,810,920.72/16,299,070.68 = 6,378,412.72/x - Step 3: Cross multiply
11,810,920.72x = 16,299,070.68 × 6,378,412.72 - Step 4: Simplify right side
11,810,920.72x = 103,962,199,749,491.05 - Step 5: Solve for x
x = 103,962,199,749,491.05/11,810,920.72 - Step 6: Final answer
x = 8,802,209.60
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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.