Finding the Fourth Proportional to 43,690,913.60, 65,552,116.80 and 18,150,252.80
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Solution
The fourth proportional to 43,690,913.60, 65,552,116.80 and 18,150,252.80 is: 27,231,920.63
Step by Step Solution
- Step 1: Write the proportion equation
43,690,913.60 : 65,552,116.80 = 18,150,252.80 : x - Step 2: Convert to fraction form
43,690,913.60/65,552,116.80 = 18,150,252.80/x - Step 3: Cross multiply
43,690,913.60x = 65,552,116.80 × 18,150,252.80 - Step 4: Simplify right side
43,690,913.60x = 1,189,787,491,495,127 - Step 5: Solve for x
x = 1,189,787,491,495,127/43,690,913.60 - Step 6: Final answer
x = 27,231,920.63
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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.