Finding the Fourth Proportional to 16,128,421.40, 24,192,113.70 and 5,346,219.80
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Solution
The fourth proportional to 16,128,421.40, 24,192,113.70 and 5,346,219.80 is: 8,019,157.86
Step by Step Solution
- Step 1: Write the proportion equation
16,128,421.40 : 24,192,113.70 = 5,346,219.80 : x - Step 2: Convert to fraction form
16,128,421.40/24,192,113.70 = 5,346,219.80/x - Step 3: Cross multiply
16,128,421.40x = 24,192,113.70 × 5,346,219.80 - Step 4: Simplify right side
16,128,421.40x = 129,336,357,266,791.25 - Step 5: Solve for x
x = 129,336,357,266,791.25/16,128,421.40 - Step 6: Final answer
x = 8,019,157.86
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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.