Finding the Fourth Proportional to 18,373,824.30, 27,569,593.80 and 12,970,840.80
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Solution
The fourth proportional to 18,373,824.30, 27,569,593.80 and 12,970,840.80 is: 19,462,513.97
Step by Step Solution
- Step 1: Write the proportion equation
18,373,824.30 : 27,569,593.80 = 12,970,840.80 : x - Step 2: Convert to fraction form
18,373,824.30/27,569,593.80 = 12,970,840.80/x - Step 3: Cross multiply
18,373,824.30x = 27,569,593.80 × 12,970,840.80 - Step 4: Simplify right side
18,373,824.30x = 357,600,812,100,467.06 - Step 5: Solve for x
x = 357,600,812,100,467.06/18,373,824.30 - Step 6: Final answer
x = 19,462,513.97
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.