Finding the Fourth Proportional to 28,201,227.12, 38,917,598.04 and 15,980,413.68
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Solution
The fourth proportional to 28,201,227.12, 38,917,598.04 and 15,980,413.68 is: 22,052,916.83
Step by Step Solution
- Step 1: Write the proportion equation
28,201,227.12 : 38,917,598.04 = 15,980,413.68 : x - Step 2: Convert to fraction form
28,201,227.12/38,917,598.04 = 15,980,413.68/x - Step 3: Cross multiply
28,201,227.12x = 38,917,598.04 × 15,980,413.68 - Step 4: Simplify right side
28,201,227.12x = 621,919,316,111,157.12 - Step 5: Solve for x
x = 621,919,316,111,157.12/28,201,227.12 - Step 6: Final answer
x = 22,052,916.83
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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.