Finding the Fourth Proportional to 19,189,157.36, 28,782,118.86 and 8,258,905.58
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Solution
The fourth proportional to 19,189,157.36, 28,782,118.86 and 8,258,905.58 is: 12,387,662.34
Step by Step Solution
- Step 1: Write the proportion equation
19,189,157.36 : 28,782,118.86 = 8,258,905.58 : x - Step 2: Convert to fraction form
19,189,157.36/28,782,118.86 = 8,258,905.58/x - Step 3: Cross multiply
19,189,157.36x = 28,782,118.86 × 8,258,905.58 - Step 4: Simplify right side
19,189,157.36x = 237,708,802,057,077.25 - Step 5: Solve for x
x = 237,708,802,057,077.25/19,189,157.36 - Step 6: Final answer
x = 12,387,662.34
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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.