Finding the Fourth Proportional to 20,809,408.08, 31,213,526.40 and 5,663,470.80
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Solution
The fourth proportional to 20,809,408.08, 31,213,526.40 and 5,663,470.80 is: 8,495,046.79
Step by Step Solution
- Step 1: Write the proportion equation
20,809,408.08 : 31,213,526.40 = 5,663,470.80 : x - Step 2: Convert to fraction form
20,809,408.08/31,213,526.40 = 5,663,470.80/x - Step 3: Cross multiply
20,809,408.08x = 31,213,526.40 × 5,663,470.80 - Step 4: Simplify right side
20,809,408.08x = 176,776,895,331,429.09 - Step 5: Solve for x
x = 176,776,895,331,429.09/20,809,408.08 - Step 6: Final answer
x = 8,495,046.79
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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.