Finding the Fourth Proportional to 19,682,159.40, 27,137,249.10 and 16,185,277.80
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Solution
The fourth proportional to 19,682,159.40, 27,137,249.10 and 16,185,277.80 is: 22,315,839.77
Step by Step Solution
- Step 1: Write the proportion equation
19,682,159.40 : 27,137,249.10 = 16,185,277.80 : x - Step 2: Convert to fraction form
19,682,159.40/27,137,249.10 = 16,185,277.80/x - Step 3: Cross multiply
19,682,159.40x = 27,137,249.10 × 16,185,277.80 - Step 4: Simplify right side
19,682,159.40x = 439,223,915,411,300 - Step 5: Solve for x
x = 439,223,915,411,300/19,682,159.40 - Step 6: Final answer
x = 22,315,839.77
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.