Finding the Fourth Proportional to 28,377,412.87, 39,160,829.37 and 15,324,671.41
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Solution
The fourth proportional to 28,377,412.87, 39,160,829.37 and 15,324,671.41 is: 21,148,046.33
Step by Step Solution
- Step 1: Write the proportion equation
28,377,412.87 : 39,160,829.37 = 15,324,671.41 : x - Step 2: Convert to fraction form
28,377,412.87/39,160,829.37 = 15,324,671.41/x - Step 3: Cross multiply
28,377,412.87x = 39,160,829.37 × 15,324,671.41 - Step 4: Simplify right side
28,377,412.87x = 600,126,842,238,327.25 - Step 5: Solve for x
x = 600,126,842,238,327.25/28,377,412.87 - Step 6: Final answer
x = 21,148,046.33
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.