Finding the Fourth Proportional to 21,011,058.70, 31,493,260.04 and 8,227,314.70
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Solution
The fourth proportional to 21,011,058.70, 31,493,260.04 and 8,227,314.70 is: 12,331,837.49
Step by Step Solution
- Step 1: Write the proportion equation
21,011,058.70 : 31,493,260.04 = 8,227,314.70 : x - Step 2: Convert to fraction form
21,011,058.70/31,493,260.04 = 8,227,314.70/x - Step 3: Cross multiply
21,011,058.70x = 31,493,260.04 × 8,227,314.70 - Step 4: Simplify right side
21,011,058.70x = 259,104,961,278,014.59 - Step 5: Solve for x
x = 259,104,961,278,014.59/21,011,058.70 - Step 6: Final answer
x = 12,331,837.49
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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.