Finding the Fourth Proportional to 9,516,146.76, 13,131,929.16 and 5,165,139.48
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Solution
The fourth proportional to 9,516,146.76, 13,131,929.16 and 5,165,139.48 is: 7,127,700.68
Step by Step Solution
- Step 1: Write the proportion equation
9,516,146.76 : 13,131,929.16 = 5,165,139.48 : x - Step 2: Convert to fraction form
9,516,146.76/13,131,929.16 = 5,165,139.48/x - Step 3: Cross multiply
9,516,146.76x = 13,131,929.16 × 5,165,139.48 - Step 4: Simplify right side
9,516,146.76x = 67,828,245,752,879.24 - Step 5: Solve for x
x = 67,828,245,752,879.24/9,516,146.76 - Step 6: Final answer
x = 7,127,700.68
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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.