Finding the Fourth Proportional to 12,122,113.65, 16,728,908.16 and 6,894,987.49
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Solution
The fourth proportional to 12,122,113.65, 16,728,908.16 and 6,894,987.49 is: 9,515,305.32
Step by Step Solution
- Step 1: Write the proportion equation
12,122,113.65 : 16,728,908.16 = 6,894,987.49 : x - Step 2: Convert to fraction form
12,122,113.65/16,728,908.16 = 6,894,987.49/x - Step 3: Cross multiply
12,122,113.65x = 16,728,908.16 × 6,894,987.49 - Step 4: Simplify right side
12,122,113.65x = 115,345,612,484,558.92 - Step 5: Solve for x
x = 115,345,612,484,558.92/12,122,113.65 - Step 6: Final answer
x = 9,515,305.32
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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.