Finding the Fourth Proportional to 11,121,497.40, 16,688,466.90 and 4,730,662.20
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Solution
The fourth proportional to 11,121,497.40, 16,688,466.90 and 4,730,662.20 is: 7,098,639.39
Step by Step Solution
- Step 1: Write the proportion equation
11,121,497.40 : 16,688,466.90 = 4,730,662.20 : x - Step 2: Convert to fraction form
11,121,497.40/16,688,466.90 = 4,730,662.20/x - Step 3: Cross multiply
11,121,497.40x = 16,688,466.90 × 4,730,662.20 - Step 4: Simplify right side
11,121,497.40x = 78,947,499,539,781.19 - Step 5: Solve for x
x = 78,947,499,539,781.19/11,121,497.40 - Step 6: Final answer
x = 7,098,639.39
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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.