Finding the Fourth Proportional to 15,193,897.92, 20,967,640.56 and 8,319,019.68
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Solution
The fourth proportional to 15,193,897.92, 20,967,640.56 and 8,319,019.68 is: 11,480,280.79
Step by Step Solution
- Step 1: Write the proportion equation
15,193,897.92 : 20,967,640.56 = 8,319,019.68 : x - Step 2: Convert to fraction form
15,193,897.92/20,967,640.56 = 8,319,019.68/x - Step 3: Cross multiply
15,193,897.92x = 20,967,640.56 × 8,319,019.68 - Step 4: Simplify right side
15,193,897.92x = 174,430,214,461,806.22 - Step 5: Solve for x
x = 174,430,214,461,806.22/15,193,897.92 - Step 6: Final answer
x = 11,480,280.79
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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.