Finding the Fourth Proportional to 43,121,351.20, 64,683,063.60 and 12,830,202.40
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Solution
The fourth proportional to 43,121,351.20, 64,683,063.60 and 12,830,202.40 is: 19,245,612.09
Step by Step Solution
- Step 1: Write the proportion equation
43,121,351.20 : 64,683,063.60 = 12,830,202.40 : x - Step 2: Convert to fraction form
43,121,351.20/64,683,063.60 = 12,830,202.40/x - Step 3: Cross multiply
43,121,351.20x = 64,683,063.60 × 12,830,202.40 - Step 4: Simplify right side
43,121,351.20x = 829,896,797,840,072.62 - Step 5: Solve for x
x = 829,896,797,840,072.62/43,121,351.20 - Step 6: Final answer
x = 19,245,612.09
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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.