Finding the Fourth Proportional to 11,514,945.36, 15,884,885.10 and 6,865,451.28
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Solution
The fourth proportional to 11,514,945.36, 15,884,885.10 and 6,865,451.28 is: 9,470,900.76
Step by Step Solution
- Step 1: Write the proportion equation
11,514,945.36 : 15,884,885.10 = 6,865,451.28 : x - Step 2: Convert to fraction form
11,514,945.36/15,884,885.10 = 6,865,451.28/x - Step 3: Cross multiply
11,514,945.36x = 15,884,885.10 × 6,865,451.28 - Step 4: Simplify right side
11,514,945.36x = 109,056,904,742,447.92 - Step 5: Solve for x
x = 109,056,904,742,447.92/11,514,945.36 - Step 6: Final answer
x = 9,470,900.76
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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.