Finding the Fourth Proportional to 145,064,812.20, 217,597,218.30 and 101,982,661.80
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Solution
The fourth proportional to 145,064,812.20, 217,597,218.30 and 101,982,661.80 is: 152,973,992.70
Step by Step Solution
- Step 1: Write the proportion equation
145,064,812.20 : 217,597,218.30 = 101,982,661.80 : x - Step 2: Convert to fraction form
145,064,812.20/217,597,218.30 = 101,982,661.80/x - Step 3: Cross multiply
145,064,812.20x = 217,597,218.30 × 101,982,661.80 - Step 4: Simplify right side
145,064,812.20x = 22,191,143,522,509,672 - Step 5: Solve for x
x = 22,191,143,522,509,672/145,064,812.20 - Step 6: Final answer
x = 152,973,992.70
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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.