Finding the Fourth Proportional to 7,856,578.19, 11,785,365.39 and 2,465,441.39
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Solution
The fourth proportional to 7,856,578.19, 11,785,365.39 and 2,465,441.39 is: 3,698,318.40
Step by Step Solution
- Step 1: Write the proportion equation
7,856,578.19 : 11,785,365.39 = 2,465,441.39 : x - Step 2: Convert to fraction form
7,856,578.19/11,785,365.39 = 2,465,441.39/x - Step 3: Cross multiply
7,856,578.19x = 11,785,365.39 × 2,465,441.39 - Step 4: Simplify right side
7,856,578.19x = 29,056,127,658,242.91 - Step 5: Solve for x
x = 29,056,127,658,242.91/7,856,578.19 - Step 6: Final answer
x = 3,698,318.40
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.