Finding the Fourth Proportional to 144,624,966.53, 199,594,762.71 and 81,912,220.58
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Solution
The fourth proportional to 144,624,966.53, 199,594,762.71 and 81,912,220.58 is: 113,045,835.88
Step by Step Solution
- Step 1: Write the proportion equation
144,624,966.53 : 199,594,762.71 = 81,912,220.58 : x - Step 2: Convert to fraction form
144,624,966.53/199,594,762.71 = 81,912,220.58/x - Step 3: Cross multiply
144,624,966.53x = 199,594,762.71 × 81,912,220.58 - Step 4: Simplify right side
144,624,966.53x = 16,349,250,229,906,094 - Step 5: Solve for x
x = 16,349,250,229,906,094/144,624,966.53 - Step 6: Final answer
x = 113,045,835.88
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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.