Finding the Fourth Proportional to 11,336,397.66, 15,643,663.38 and 6,440,973.12
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Solution
The fourth proportional to 11,336,397.66, 15,643,663.38 and 6,440,973.12 is: 8,888,221.67
Step by Step Solution
- Step 1: Write the proportion equation
11,336,397.66 : 15,643,663.38 = 6,440,973.12 : x - Step 2: Convert to fraction form
11,336,397.66/15,643,663.38 = 6,440,973.12/x - Step 3: Cross multiply
11,336,397.66x = 15,643,663.38 × 6,440,973.12 - Step 4: Simplify right side
11,336,397.66x = 100,760,415,328,908.36 - Step 5: Solve for x
x = 100,760,415,328,908.36/11,336,397.66 - Step 6: Final answer
x = 8,888,221.67
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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.