Finding the Fourth Proportional to 11,205,919.96, 15,464,744.18 and 6,853,639.28
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Solution
The fourth proportional to 11,205,919.96, 15,464,744.18 and 6,853,639.28 is: 9,458,373.66
Step by Step Solution
- Step 1: Write the proportion equation
11,205,919.96 : 15,464,744.18 = 6,853,639.28 : x - Step 2: Convert to fraction form
11,205,919.96/15,464,744.18 = 6,853,639.28/x - Step 3: Cross multiply
11,205,919.96x = 15,464,744.18 × 6,853,639.28 - Step 4: Simplify right side
11,205,919.96x = 105,989,778,167,199.39 - Step 5: Solve for x
x = 105,989,778,167,199.39/11,205,919.96 - Step 6: Final answer
x = 9,458,373.66
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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.