Finding the Fourth Proportional to 32,343,815.40, 48,515,723.10 and 13,188,319.80
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Solution
The fourth proportional to 32,343,815.40, 48,515,723.10 and 13,188,319.80 is: 19,782,479.70
Step by Step Solution
- Step 1: Write the proportion equation
32,343,815.40 : 48,515,723.10 = 13,188,319.80 : x - Step 2: Convert to fraction form
32,343,815.40/48,515,723.10 = 13,188,319.80/x - Step 3: Cross multiply
32,343,815.40x = 48,515,723.10 × 13,188,319.80 - Step 4: Simplify right side
32,343,815.40x = 639,840,871,571,047.38 - Step 5: Solve for x
x = 639,840,871,571,047.38/32,343,815.40 - Step 6: Final answer
x = 19,782,479.70
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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.