Finding the Fourth Proportional to 19,416,983.60, 29,125,475.40 and 19,165,041.20
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Solution
The fourth proportional to 19,416,983.60, 29,125,475.40 and 19,165,041.20 is: 28,747,561.80
Step by Step Solution
- Step 1: Write the proportion equation
19,416,983.60 : 29,125,475.40 = 19,165,041.20 : x - Step 2: Convert to fraction form
19,416,983.60/29,125,475.40 = 19,165,041.20/x - Step 3: Cross multiply
19,416,983.60x = 29,125,475.40 × 19,165,041.20 - Step 4: Simplify right side
19,416,983.60x = 558,190,936,010,586.44 - Step 5: Solve for x
x = 558,190,936,010,586.44/19,416,983.60 - Step 6: Final answer
x = 28,747,561.80
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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.