Finding the Fourth Proportional to 12,876,261.99, 19,330,782.27 and 8,346,266.72
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Solution
The fourth proportional to 12,876,261.99, 19,330,782.27 and 8,346,266.72 is: 12,530,023.45
Step by Step Solution
- Step 1: Write the proportion equation
12,876,261.99 : 19,330,782.27 = 8,346,266.72 : x - Step 2: Convert to fraction form
12,876,261.99/19,330,782.27 = 8,346,266.72/x - Step 3: Cross multiply
12,876,261.99x = 19,330,782.27 × 8,346,266.72 - Step 4: Simplify right side
12,876,261.99x = 161,339,864,731,667.03 - Step 5: Solve for x
x = 161,339,864,731,667.03/12,876,261.99 - Step 6: Final answer
x = 12,530,023.45
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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.