Finding the Fourth Proportional to 21,679,044.83, 29,917,465.63 and 11,889,404.07
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Solution
The fourth proportional to 21,679,044.83, 29,917,465.63 and 11,889,404.07 is: 16,407,588.08
Step by Step Solution
- Step 1: Write the proportion equation
21,679,044.83 : 29,917,465.63 = 11,889,404.07 : x - Step 2: Convert to fraction form
21,679,044.83/29,917,465.63 = 11,889,404.07/x - Step 3: Cross multiply
21,679,044.83x = 29,917,465.63 × 11,889,404.07 - Step 4: Simplify right side
21,679,044.83x = 355,700,837,483,493.12 - Step 5: Solve for x
x = 355,700,837,483,493.12/21,679,044.83 - Step 6: Final answer
x = 16,407,588.08
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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.