Finding the Fourth Proportional to 331,388,314.74, 497,133,548.05 and 112,987,580.87
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Solution
The fourth proportional to 331,388,314.74, 497,133,548.05 and 112,987,580.87 is: 169,498,785.76
Step by Step Solution
- Step 1: Write the proportion equation
331,388,314.74 : 497,133,548.05 = 112,987,580.87 : x - Step 2: Convert to fraction form
331,388,314.74/497,133,548.05 = 112,987,580.87/x - Step 3: Cross multiply
331,388,314.74x = 497,133,548.05 × 112,987,580.87 - Step 4: Simplify right side
331,388,314.74x = 56,169,916,965,085,888 - Step 5: Solve for x
x = 56,169,916,965,085,888/331,388,314.74 - Step 6: Final answer
x = 169,498,785.76
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.