Finding the Fourth Proportional to 21,102,502.16, 29,112,207 and 12,396,747.44
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Solution
The fourth proportional to 21,102,502.16, 29,112,207 and 12,396,747.44 is: 17,102,079.88
Step by Step Solution
- Step 1: Write the proportion equation
21,102,502.16 : 29,112,207 = 12,396,747.44 : x - Step 2: Convert to fraction form
21,102,502.16/29,112,207 = 12,396,747.44/x - Step 3: Cross multiply
21,102,502.16x = 29,112,207 × 12,396,747.44 - Step 4: Simplify right side
21,102,502.16x = 360,896,677,600,000.06 - Step 5: Solve for x
x = 360,896,677,600,000.06/21,102,502.16 - Step 6: Final answer
x = 17,102,079.88
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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.