Finding the Fourth Proportional to 15,581,372.99, 23,478,413.74 and 12,803,708.03
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Solution
The fourth proportional to 15,581,372.99, 23,478,413.74 and 12,803,708.03 is: 19,292,956.70
Step by Step Solution
- Step 1: Write the proportion equation
15,581,372.99 : 23,478,413.74 = 12,803,708.03 : x - Step 2: Convert to fraction form
15,581,372.99/23,478,413.74 = 12,803,708.03/x - Step 3: Cross multiply
15,581,372.99x = 23,478,413.74 × 12,803,708.03 - Step 4: Simplify right side
15,581,372.99x = 300,610,754,470,481.75 - Step 5: Solve for x
x = 300,610,754,470,481.75/15,581,372.99 - Step 6: Final answer
x = 19,292,956.70
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Why These Related Problems?
These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.