Finding the Fourth Proportional to 5,106,072.40, 7,046,422.80 and 2,814,238.96
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Solution
The fourth proportional to 5,106,072.40, 7,046,422.80 and 2,814,238.96 is: 3,883,673.40
Step by Step Solution
- Step 1: Write the proportion equation
5,106,072.40 : 7,046,422.80 = 2,814,238.96 : x - Step 2: Convert to fraction form
5,106,072.40/7,046,422.80 = 2,814,238.96/x - Step 3: Cross multiply
5,106,072.40x = 7,046,422.80 × 2,814,238.96 - Step 4: Simplify right side
5,106,072.40x = 19,830,317,572,392.29 - Step 5: Solve for x
x = 19,830,317,572,392.29/5,106,072.40 - Step 6: Final answer
x = 3,883,673.40
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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.