Finding the Fourth Proportional to 16,415,999.80, 24,623,999.70 and 7,318,079.80
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Solution
The fourth proportional to 16,415,999.80, 24,623,999.70 and 7,318,079.80 is: 10,977,119.70
Step by Step Solution
- Step 1: Write the proportion equation
16,415,999.80 : 24,623,999.70 = 7,318,079.80 : x - Step 2: Convert to fraction form
16,415,999.80/24,623,999.70 = 7,318,079.80/x - Step 3: Cross multiply
16,415,999.80x = 24,623,999.70 × 7,318,079.80 - Step 4: Simplify right side
16,415,999.80x = 180,200,394,799,776.06 - Step 5: Solve for x
x = 180,200,394,799,776.06/16,415,999.80 - Step 6: Final answer
x = 10,977,119.70
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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.