Finding the Fourth Proportional to 393,330,466.60, 589,995,699.90 and 189,257,122.60
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Solution
The fourth proportional to 393,330,466.60, 589,995,699.90 and 189,257,122.60 is: 283,885,683.90
Step by Step Solution
- Step 1: Write the proportion equation
393,330,466.60 : 589,995,699.90 = 189,257,122.60 : x - Step 2: Convert to fraction form
393,330,466.60/589,995,699.90 = 189,257,122.60/x - Step 3: Cross multiply
393,330,466.60x = 589,995,699.90 × 189,257,122.60 - Step 4: Simplify right side
393,330,466.60x = 111,660,888,509,447,104 - Step 5: Solve for x
x = 111,660,888,509,447,104/393,330,466.60 - Step 6: Final answer
x = 283,885,683.90
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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.