Finding the Fourth Proportional to 36,643,473.20, 54,963,460.20 and 12,380,020.40
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Solution
The fourth proportional to 36,643,473.20, 54,963,460.20 and 12,380,020.40 is: 18,569,439.50
Step by Step Solution
- Step 1: Write the proportion equation
36,643,473.20 : 54,963,460.20 = 12,380,020.40 : x - Step 2: Convert to fraction form
36,643,473.20/54,963,460.20 = 12,380,020.40/x - Step 3: Cross multiply
36,643,473.20x = 54,963,460.20 × 12,380,020.40 - Step 4: Simplify right side
36,643,473.20x = 680,448,758,530,588.12 - Step 5: Solve for x
x = 680,448,758,530,588.12/36,643,473.20 - Step 6: Final answer
x = 18,569,439.50
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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.