Finding the Fourth Proportional to 315,335,369.70, 432,002,239.86 and 303,545,670.66
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Solution
The fourth proportional to 315,335,369.70, 432,002,239.86 and 303,545,670.66 is: 415,850,621.99
Step by Step Solution
- Step 1: Write the proportion equation
315,335,369.70 : 432,002,239.86 = 303,545,670.66 : x - Step 2: Convert to fraction form
315,335,369.70/432,002,239.86 = 303,545,670.66/x - Step 3: Cross multiply
315,335,369.70x = 432,002,239.86 × 303,545,670.66 - Step 4: Simplify right side
315,335,369.70x = 131,132,409,624,925,904 - Step 5: Solve for x
x = 131,132,409,624,925,904/315,335,369.70 - Step 6: Final answer
x = 415,850,621.99
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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.