Finding the Fourth Proportional to 50,979,639.60, 76,458,832.20 and 18,646,772.40
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Solution
The fourth proportional to 50,979,639.60, 76,458,832.20 and 18,646,772.40 is: 27,966,271.50
Step by Step Solution
- Step 1: Write the proportion equation
50,979,639.60 : 76,458,832.20 = 18,646,772.40 : x - Step 2: Convert to fraction form
50,979,639.60/76,458,832.20 = 18,646,772.40/x - Step 3: Cross multiply
50,979,639.60x = 76,458,832.20 × 18,646,772.40 - Step 4: Simplify right side
50,979,639.60x = 1,425,710,442,003,191.25 - Step 5: Solve for x
x = 1,425,710,442,003,191.25/50,979,639.60 - Step 6: Final answer
x = 27,966,271.50
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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.