Finding the Fourth Proportional to 12,722,920.06, 17,563,727.92 and 7,832,334.26
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Solution
The fourth proportional to 12,722,920.06, 17,563,727.92 and 7,832,334.26 is: 10,812,375.40
Step by Step Solution
- Step 1: Write the proportion equation
12,722,920.06 : 17,563,727.92 = 7,832,334.26 : x - Step 2: Convert to fraction form
12,722,920.06/17,563,727.92 = 7,832,334.26/x - Step 3: Cross multiply
12,722,920.06x = 17,563,727.92 × 7,832,334.26 - Step 4: Simplify right side
12,722,920.06x = 137,564,987,833,315.91 - Step 5: Solve for x
x = 137,564,987,833,315.91/12,722,920.06 - Step 6: Final answer
x = 10,812,375.40
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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.