Finding the Fourth Proportional to 29,145,368.81, 40,220,803.41 and 15,914,637.60
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Solution
The fourth proportional to 29,145,368.81, 40,220,803.41 and 15,914,637.60 is: 21,962,306.06
Step by Step Solution
- Step 1: Write the proportion equation
29,145,368.81 : 40,220,803.41 = 15,914,637.60 : x - Step 2: Convert to fraction form
29,145,368.81/40,220,803.41 = 15,914,637.60/x - Step 3: Cross multiply
29,145,368.81x = 40,220,803.41 × 15,914,637.60 - Step 4: Simplify right side
29,145,368.81x = 640,099,510,098,912.25 - Step 5: Solve for x
x = 640,099,510,098,912.25/29,145,368.81 - Step 6: Final answer
x = 21,962,306.06
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.