Finding the Fourth Proportional to 28,374,383.40, 42,567,553.74 and 9,203,645.80
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Solution
The fourth proportional to 28,374,383.40, 42,567,553.74 and 9,203,645.80 is: 13,807,407.96
Step by Step Solution
- Step 1: Write the proportion equation
28,374,383.40 : 42,567,553.74 = 9,203,645.80 : x - Step 2: Convert to fraction form
28,374,383.40/42,567,553.74 = 9,203,645.80/x - Step 3: Cross multiply
28,374,383.40x = 42,567,553.74 × 9,203,645.80 - Step 4: Simplify right side
28,374,383.40x = 391,776,687,195,425.31 - Step 5: Solve for x
x = 391,776,687,195,425.31/28,374,383.40 - Step 6: Final answer
x = 13,807,407.96
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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.