Finding the Fourth Proportional to 21,283,117.92, 31,929,398.64 and 6,135,867.36
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Solution
The fourth proportional to 21,283,117.92, 31,929,398.64 and 6,135,867.36 is: 9,205,162.31
Step by Step Solution
- Step 1: Write the proportion equation
21,283,117.92 : 31,929,398.64 = 6,135,867.36 : x - Step 2: Convert to fraction form
21,283,117.92/31,929,398.64 = 6,135,867.36/x - Step 3: Cross multiply
21,283,117.92x = 31,929,398.64 × 6,135,867.36 - Step 4: Simplify right side
21,283,117.92x = 195,914,554,939,604.41 - Step 5: Solve for x
x = 195,914,554,939,604.41/21,283,117.92 - Step 6: Final answer
x = 9,205,162.31
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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.