Finding the Fourth Proportional to 403,603,168.84, 556,972,351.68 and 217,964,166.64
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Solution
The fourth proportional to 403,603,168.84, 556,972,351.68 and 217,964,166.64 is: 300,790,538.45
Step by Step Solution
- Step 1: Write the proportion equation
403,603,168.84 : 556,972,351.68 = 217,964,166.64 : x - Step 2: Convert to fraction form
403,603,168.84/556,972,351.68 = 217,964,166.64/x - Step 3: Cross multiply
403,603,168.84x = 556,972,351.68 × 217,964,166.64 - Step 4: Simplify right side
403,603,168.84x = 121,400,014,475,452,192 - Step 5: Solve for x
x = 121,400,014,475,452,192/403,603,168.84 - Step 6: Final answer
x = 300,790,538.45
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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.