Finding the Fourth Proportional to 8,128,283.57, 12,202,829.87 and 6,982,858.22
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Solution
The fourth proportional to 8,128,283.57, 12,202,829.87 and 6,982,858.22 is: 10,483,225.66
Step by Step Solution
- Step 1: Write the proportion equation
8,128,283.57 : 12,202,829.87 = 6,982,858.22 : x - Step 2: Convert to fraction form
8,128,283.57/12,202,829.87 = 6,982,858.22/x - Step 3: Cross multiply
8,128,283.57x = 12,202,829.87 × 6,982,858.22 - Step 4: Simplify right side
8,128,283.57x = 85,210,630,864,991.02 - Step 5: Solve for x
x = 85,210,630,864,991.02/8,128,283.57 - Step 6: Final answer
x = 10,483,225.66
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1.5x scale
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.