Finding the Fourth Proportional to 118,125,163.20, 177,187,744.80 and 105,136,132.80
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Solution
The fourth proportional to 118,125,163.20, 177,187,744.80 and 105,136,132.80 is: 157,704,199.20
Step by Step Solution
- Step 1: Write the proportion equation
118,125,163.20 : 177,187,744.80 = 105,136,132.80 : x - Step 2: Convert to fraction form
118,125,163.20/177,187,744.80 = 105,136,132.80/x - Step 3: Cross multiply
118,125,163.20x = 177,187,744.80 × 105,136,132.80 - Step 4: Simplify right side
118,125,163.20x = 18,628,834,267,825,312 - Step 5: Solve for x
x = 18,628,834,267,825,312/118,125,163.20 - Step 6: Final answer
x = 157,704,199.20
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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.