Finding the Fourth Proportional to 201,648,249.01, 278,283,171.98 and 112,340,142.53
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Solution
The fourth proportional to 201,648,249.01, 278,283,171.98 and 112,340,142.53 is: 155,034,181.33
Step by Step Solution
- Step 1: Write the proportion equation
201,648,249.01 : 278,283,171.98 = 112,340,142.53 : x - Step 2: Convert to fraction form
201,648,249.01/278,283,171.98 = 112,340,142.53/x - Step 3: Cross multiply
201,648,249.01x = 278,283,171.98 × 112,340,142.53 - Step 4: Simplify right side
201,648,249.01x = 31,262,371,201,980,592 - Step 5: Solve for x
x = 31,262,371,201,980,592/201,648,249.01 - Step 6: Final answer
x = 155,034,181.33
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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.