Finding the Fourth Proportional to 49,169,974.80, 73,754,962.20 and 13,268,125.20
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Solution
The fourth proportional to 49,169,974.80, 73,754,962.20 and 13,268,125.20 is: 19,902,187.80
Step by Step Solution
- Step 1: Write the proportion equation
49,169,974.80 : 73,754,962.20 = 13,268,125.20 : x - Step 2: Convert to fraction form
49,169,974.80/73,754,962.20 = 13,268,125.20/x - Step 3: Cross multiply
49,169,974.80x = 73,754,962.20 × 13,268,125.20 - Step 4: Simplify right side
49,169,974.80x = 978,590,072,590,867.38 - Step 5: Solve for x
x = 978,590,072,590,867.38/49,169,974.80 - Step 6: Final answer
x = 19,902,187.80
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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.