Finding the Fourth Proportional to 50,311,911.36, 69,430,672.80 and 28,583,071.68
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Solution
The fourth proportional to 50,311,911.36, 69,430,672.80 and 28,583,071.68 is: 39,444,772.50
Step by Step Solution
- Step 1: Write the proportion equation
50,311,911.36 : 69,430,672.80 = 28,583,071.68 : x - Step 2: Convert to fraction form
50,311,911.36/69,430,672.80 = 28,583,071.68/x - Step 3: Cross multiply
50,311,911.36x = 69,430,672.80 × 28,583,071.68 - Step 4: Simplify right side
50,311,911.36x = 1,984,541,897,433,026.25 - Step 5: Solve for x
x = 1,984,541,897,433,026.25/50,311,911.36 - Step 6: Final answer
x = 39,444,772.50
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.