Finding the Fourth Proportional to 49,672,893.60, 74,509,340.40 and 13,286,899.80
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Solution
The fourth proportional to 49,672,893.60, 74,509,340.40 and 13,286,899.80 is: 19,930,349.70
Step by Step Solution
- Step 1: Write the proportion equation
49,672,893.60 : 74,509,340.40 = 13,286,899.80 : x - Step 2: Convert to fraction form
49,672,893.60/74,509,340.40 = 13,286,899.80/x - Step 3: Cross multiply
49,672,893.60x = 74,509,340.40 × 13,286,899.80 - Step 4: Simplify right side
49,672,893.60x = 989,998,140,058,892 - Step 5: Solve for x
x = 989,998,140,058,892/49,672,893.60 - Step 6: Final answer
x = 19,930,349.70
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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.