Finding the Fourth Proportional to 13,771,840.80, 20,634,141.60 and 6,567,862.80
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Solution
The fourth proportional to 13,771,840.80, 20,634,141.60 and 6,567,862.80 is: 9,840,529.89
Step by Step Solution
- Step 1: Write the proportion equation
13,771,840.80 : 20,634,141.60 = 6,567,862.80 : x - Step 2: Convert to fraction form
13,771,840.80/20,634,141.60 = 6,567,862.80/x - Step 3: Cross multiply
13,771,840.80x = 20,634,141.60 × 6,567,862.80 - Step 4: Simplify right side
13,771,840.80x = 135,522,211,024,572.48 - Step 5: Solve for x
x = 135,522,211,024,572.48/13,771,840.80 - Step 6: Final answer
x = 9,840,529.89
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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.