Finding the Fourth Proportional to 393,324,997.60, 589,483,611.60 and 349,990,904.80
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Solution
The fourth proportional to 393,324,997.60, 589,483,611.60 and 349,990,904.80 is: 524,537,987.28
Step by Step Solution
- Step 1: Write the proportion equation
393,324,997.60 : 589,483,611.60 = 349,990,904.80 : x - Step 2: Convert to fraction form
393,324,997.60/589,483,611.60 = 349,990,904.80/x - Step 3: Cross multiply
393,324,997.60x = 589,483,611.60 × 349,990,904.80 - Step 4: Simplify right side
393,324,997.60x = 206,313,902,588,655,776 - Step 5: Solve for x
x = 206,313,902,588,655,776/393,324,997.60 - Step 6: Final answer
x = 524,537,987.28
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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.