Finding the Fourth Proportional to 403,603,157.34, 556,972,335.81 and 217,964,155.14
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Solution
The fourth proportional to 403,603,157.34, 556,972,335.81 and 217,964,155.14 is: 300,790,522.58
Step by Step Solution
- Step 1: Write the proportion equation
403,603,157.34 : 556,972,335.81 = 217,964,155.14 : x - Step 2: Convert to fraction form
403,603,157.34/556,972,335.81 = 217,964,155.14/x - Step 3: Cross multiply
403,603,157.34x = 556,972,335.81 × 217,964,155.14 - Step 4: Simplify right side
403,603,157.34x = 121,400,004,611,178,992 - Step 5: Solve for x
x = 121,400,004,611,178,992/403,603,157.34 - Step 6: Final answer
x = 300,790,522.58
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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.