Finding the Fourth Proportional to 28,180,315.80, 42,270,473.70 and 16,842,907.80
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Solution
The fourth proportional to 28,180,315.80, 42,270,473.70 and 16,842,907.80 is: 25,264,361.70
Step by Step Solution
- Step 1: Write the proportion equation
28,180,315.80 : 42,270,473.70 = 16,842,907.80 : x - Step 2: Convert to fraction form
28,180,315.80/42,270,473.70 = 16,842,907.80/x - Step 3: Cross multiply
28,180,315.80x = 42,270,473.70 × 16,842,907.80 - Step 4: Simplify right side
28,180,315.80x = 711,957,691,191,425 - Step 5: Solve for x
x = 711,957,691,191,425/28,180,315.80 - Step 6: Final answer
x = 25,264,361.70
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1.5x scale
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.