Finding the Fourth Proportional to 7,686,489.69, 10,607,354.07 and 4,201,843.05
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Solution
The fourth proportional to 7,686,489.69, 10,607,354.07 and 4,201,843.05 is: 5,798,542.48
Step by Step Solution
- Step 1: Write the proportion equation
7,686,489.69 : 10,607,354.07 = 4,201,843.05 : x - Step 2: Convert to fraction form
7,686,489.69/10,607,354.07 = 4,201,843.05/x - Step 3: Cross multiply
7,686,489.69x = 10,607,354.07 × 4,201,843.05 - Step 4: Simplify right side
7,686,489.69x = 44,570,436,977,918.71 - Step 5: Solve for x
x = 44,570,436,977,918.71/7,686,489.69 - Step 6: Final answer
x = 5,798,542.48
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Double scale
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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.