Finding the Fourth Proportional to 19,968,020.20, 29,952,030.30 and 13,244,026.60
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Solution
The fourth proportional to 19,968,020.20, 29,952,030.30 and 13,244,026.60 is: 19,866,039.90
Step by Step Solution
- Step 1: Write the proportion equation
19,968,020.20 : 29,952,030.30 = 13,244,026.60 : x - Step 2: Convert to fraction form
19,968,020.20/29,952,030.30 = 13,244,026.60/x - Step 3: Cross multiply
19,968,020.20x = 29,952,030.30 × 13,244,026.60 - Step 4: Simplify right side
19,968,020.20x = 396,685,486,017,206 - Step 5: Solve for x
x = 396,685,486,017,206/19,968,020.20 - Step 6: Final answer
x = 19,866,039.90
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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.