Finding the Fourth Proportional to 49,690,130.40, 74,538,694.80 and 28,135,058.40
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Solution
The fourth proportional to 49,690,130.40, 74,538,694.80 and 28,135,058.40 is: 42,204,568.88
Step by Step Solution
- Step 1: Write the proportion equation
49,690,130.40 : 74,538,694.80 = 28,135,058.40 : x - Step 2: Convert to fraction form
49,690,130.40/74,538,694.80 = 28,135,058.40/x - Step 3: Cross multiply
49,690,130.40x = 74,538,694.80 × 28,135,058.40 - Step 4: Simplify right side
49,690,130.40x = 2,097,150,531,257,776.25 - Step 5: Solve for x
x = 2,097,150,531,257,776.25/49,690,130.40 - Step 6: Final answer
x = 42,204,568.88
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.