Finding the Fourth Proportional to 27,917,128.90, 41,875,707.93 and 8,749,378.81
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Solution
The fourth proportional to 27,917,128.90, 41,875,707.93 and 8,749,378.81 is: 13,124,072.78
Step by Step Solution
- Step 1: Write the proportion equation
27,917,128.90 : 41,875,707.93 = 8,749,378.81 : x - Step 2: Convert to fraction form
27,917,128.90/41,875,707.93 = 8,749,378.81/x - Step 3: Cross multiply
27,917,128.90x = 41,875,707.93 × 8,749,378.81 - Step 4: Simplify right side
27,917,128.90x = 366,386,431,616,491 - Step 5: Solve for x
x = 366,386,431,616,491/27,917,128.90 - Step 6: Final answer
x = 13,124,072.78
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.