Finding the Fourth Proportional to 15,089,579.92, 20,823,622.68 and 8,214,113.62
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Solution
The fourth proportional to 15,089,579.92, 20,823,622.68 and 8,214,113.62 is: 11,335,478.10
Step by Step Solution
- Step 1: Write the proportion equation
15,089,579.92 : 20,823,622.68 = 8,214,113.62 : x - Step 2: Convert to fraction form
15,089,579.92/20,823,622.68 = 8,214,113.62/x - Step 3: Cross multiply
15,089,579.92x = 20,823,622.68 × 8,214,113.62 - Step 4: Simplify right side
15,089,579.92x = 171,047,602,673,528.91 - Step 5: Solve for x
x = 171,047,602,673,528.91/15,089,579.92 - Step 6: Final answer
x = 11,335,478.10
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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.