Finding the Fourth Proportional to 19,968,030.80, 29,952,046.20 and 16,119,429.20
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Solution
The fourth proportional to 19,968,030.80, 29,952,046.20 and 16,119,429.20 is: 24,179,143.80
Step by Step Solution
- Step 1: Write the proportion equation
19,968,030.80 : 29,952,046.20 = 16,119,429.20 : x - Step 2: Convert to fraction form
19,968,030.80/29,952,046.20 = 16,119,429.20/x - Step 3: Cross multiply
19,968,030.80x = 29,952,046.20 × 16,119,429.20 - Step 4: Simplify right side
19,968,030.80x = 482,809,888,116,029 - Step 5: Solve for x
x = 482,809,888,116,029/19,968,030.80 - Step 6: Final answer
x = 24,179,143.80
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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.