Finding the Fourth Proportional to 28,425,447.98, 39,227,235.60 and 15,372,706.62
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Solution
The fourth proportional to 28,425,447.98, 39,227,235.60 and 15,372,706.62 is: 21,214,398.62
Step by Step Solution
- Step 1: Write the proportion equation
28,425,447.98 : 39,227,235.60 = 15,372,706.62 : x - Step 2: Convert to fraction form
28,425,447.98/39,227,235.60 = 15,372,706.62/x - Step 3: Cross multiply
28,425,447.98x = 39,227,235.60 × 15,372,706.62 - Step 4: Simplify right side
28,425,447.98x = 603,028,784,392,419.62 - Step 5: Solve for x
x = 603,028,784,392,419.62/28,425,447.98 - Step 6: Final answer
x = 21,214,398.62
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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.