Finding the Fourth Proportional to 21,546,808.40, 29,735,312.27 and 11,757,789.51
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Solution
The fourth proportional to 21,546,808.40, 29,735,312.27 and 11,757,789.51 is: 16,226,140.61
Step by Step Solution
- Step 1: Write the proportion equation
21,546,808.40 : 29,735,312.27 = 11,757,789.51 : x - Step 2: Convert to fraction form
21,546,808.40/29,735,312.27 = 11,757,789.51/x - Step 3: Cross multiply
21,546,808.40x = 29,735,312.27 × 11,757,789.51 - Step 4: Simplify right side
21,546,808.40x = 349,621,542,625,991.31 - Step 5: Solve for x
x = 349,621,542,625,991.31/21,546,808.40 - Step 6: Final answer
x = 16,226,140.61
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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.