Finding the Fourth Proportional to 73,744,491.40, 110,616,737.10 and 66,438,161.80
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Solution
The fourth proportional to 73,744,491.40, 110,616,737.10 and 66,438,161.80 is: 99,657,242.70
Step by Step Solution
- Step 1: Write the proportion equation
73,744,491.40 : 110,616,737.10 = 66,438,161.80 : x - Step 2: Convert to fraction form
73,744,491.40/110,616,737.10 = 66,438,161.80/x - Step 3: Cross multiply
73,744,491.40x = 110,616,737.10 × 66,438,161.80 - Step 4: Simplify right side
73,744,491.40x = 7,349,172,677,237,862 - Step 5: Solve for x
x = 7,349,172,677,237,862/73,744,491.40 - Step 6: Final answer
x = 99,657,242.70
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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.