Finding the Fourth Proportional to 42,188,037.09, 63,288,119.79 and 13,044,148.91
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Solution
The fourth proportional to 42,188,037.09, 63,288,119.79 and 13,044,148.91 is: 19,568,098.34
Step by Step Solution
- Step 1: Write the proportion equation
42,188,037.09 : 63,288,119.79 = 13,044,148.91 : x - Step 2: Convert to fraction form
42,188,037.09/63,288,119.79 = 13,044,148.91/x - Step 3: Cross multiply
42,188,037.09x = 63,288,119.79 × 13,044,148.91 - Step 4: Simplify right side
42,188,037.09x = 825,539,658,458,237.25 - Step 5: Solve for x
x = 825,539,658,458,237.25/42,188,037.09 - Step 6: Final answer
x = 19,568,098.34
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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.