Finding the Fourth Proportional to 19,461,467.92, 26,862,430.74 and 12,850,883.80
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Solution
The fourth proportional to 19,461,467.92, 26,862,430.74 and 12,850,883.80 is: 17,737,920.77
Step by Step Solution
- Step 1: Write the proportion equation
19,461,467.92 : 26,862,430.74 = 12,850,883.80 : x - Step 2: Convert to fraction form
19,461,467.92/26,862,430.74 = 12,850,883.80/x - Step 3: Cross multiply
19,461,467.92x = 26,862,430.74 × 12,850,883.80 - Step 4: Simplify right side
19,461,467.92x = 345,205,976,025,288 - Step 5: Solve for x
x = 345,205,976,025,288/19,461,467.92 - Step 6: Final answer
x = 17,737,920.77
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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.