Finding the Fourth Proportional to 54,399,643.20, 81,599,464.80 and 51,208,372.80
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Solution
The fourth proportional to 54,399,643.20, 81,599,464.80 and 51,208,372.80 is: 76,812,559.20
Step by Step Solution
- Step 1: Write the proportion equation
54,399,643.20 : 81,599,464.80 = 51,208,372.80 : x - Step 2: Convert to fraction form
54,399,643.20/81,599,464.80 = 51,208,372.80/x - Step 3: Cross multiply
54,399,643.20x = 81,599,464.80 × 51,208,372.80 - Step 4: Simplify right side
54,399,643.20x = 4,178,575,813,758,877 - Step 5: Solve for x
x = 4,178,575,813,758,877/54,399,643.20 - Step 6: Final answer
x = 76,812,559.20
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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.