Finding the Fourth Proportional to 12,230,280.10, 18,345,420.15 and 8,199,201.70
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Solution
The fourth proportional to 12,230,280.10, 18,345,420.15 and 8,199,201.70 is: 12,298,802.55
Step by Step Solution
- Step 1: Write the proportion equation
12,230,280.10 : 18,345,420.15 = 8,199,201.70 : x - Step 2: Convert to fraction form
12,230,280.10/18,345,420.15 = 8,199,201.70/x - Step 3: Cross multiply
12,230,280.10x = 18,345,420.15 × 8,199,201.70 - Step 4: Simplify right side
12,230,280.10x = 150,417,800,081,094.25 - Step 5: Solve for x
x = 150,417,800,081,094.25/12,230,280.10 - Step 6: Final answer
x = 12,298,802.55
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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.