Finding the Fourth Proportional to 6,854,976.81, 9,459,503.87 and 3,954,195.09
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Solution
The fourth proportional to 6,854,976.81, 9,459,503.87 and 3,954,195.09 is: 5,456,579.18
Step by Step Solution
- Step 1: Write the proportion equation
6,854,976.81 : 9,459,503.87 = 3,954,195.09 : x - Step 2: Convert to fraction form
6,854,976.81/9,459,503.87 = 3,954,195.09/x - Step 3: Cross multiply
6,854,976.81x = 9,459,503.87 × 3,954,195.09 - Step 4: Simplify right side
6,854,976.81x = 37,404,723,736,819.02 - Step 5: Solve for x
x = 37,404,723,736,819.02/6,854,976.81 - Step 6: Final answer
x = 5,456,579.18
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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.