Finding the Fourth Proportional to 315,335,028.83, 432,001,772.87 and 303,545,329.79
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Solution
The fourth proportional to 315,335,028.83, 432,001,772.87 and 303,545,329.79 is: 415,850,154.99
Step by Step Solution
- Step 1: Write the proportion equation
315,335,028.83 : 432,001,772.87 = 303,545,329.79 : x - Step 2: Convert to fraction form
315,335,028.83/432,001,772.87 = 303,545,329.79/x - Step 3: Cross multiply
315,335,028.83x = 432,001,772.87 × 303,545,329.79 - Step 4: Simplify right side
315,335,028.83x = 131,132,120,612,011,104 - Step 5: Solve for x
x = 131,132,120,612,011,104/315,335,028.83 - Step 6: Final answer
x = 415,850,154.99
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Why These Related Problems?
These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.