Finding the Fourth Proportional to 15,132,916.67, 20,883,929.09 and 8,257,775.99
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Solution
The fourth proportional to 15,132,916.67, 20,883,929.09 and 8,257,775.99 is: 11,396,005.93
Step by Step Solution
- Step 1: Write the proportion equation
15,132,916.67 : 20,883,929.09 = 8,257,775.99 : x - Step 2: Convert to fraction form
15,132,916.67/20,883,929.09 = 8,257,775.99/x - Step 3: Cross multiply
15,132,916.67x = 20,883,929.09 × 8,257,775.99 - Step 4: Simplify right side
15,132,916.67x = 172,454,808,070,556.03 - Step 5: Solve for x
x = 172,454,808,070,556.03/15,132,916.67 - Step 6: Final answer
x = 11,396,005.93
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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.