Finding the Fourth Proportional to 17,687,038.80, 26,467,572.60 and 12,270,277.20
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Solution
The fourth proportional to 17,687,038.80, 26,467,572.60 and 12,270,277.20 is: 18,361,719.92
Step by Step Solution
- Step 1: Write the proportion equation
17,687,038.80 : 26,467,572.60 = 12,270,277.20 : x - Step 2: Convert to fraction form
17,687,038.80/26,467,572.60 = 12,270,277.20/x - Step 3: Cross multiply
17,687,038.80x = 26,467,572.60 × 12,270,277.20 - Step 4: Simplify right side
17,687,038.80x = 324,764,452,613,124.69 - Step 5: Solve for x
x = 324,764,452,613,124.69/17,687,038.80 - Step 6: Final answer
x = 18,361,719.92
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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.