Finding the Fourth Proportional to 79,956,063.09, 119,882,130.30 and 31,438,649.07
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Solution
The fourth proportional to 79,956,063.09, 119,882,130.30 and 31,438,649.07 is: 47,137,541.28
Step by Step Solution
- Step 1: Write the proportion equation
79,956,063.09 : 119,882,130.30 = 31,438,649.07 : x - Step 2: Convert to fraction form
79,956,063.09/119,882,130.30 = 31,438,649.07/x - Step 3: Cross multiply
79,956,063.09x = 119,882,130.30 × 31,438,649.07 - Step 4: Simplify right side
79,956,063.09x = 3,768,932,224,265,714 - Step 5: Solve for x
x = 3,768,932,224,265,714/79,956,063.09 - Step 6: Final answer
x = 47,137,541.28
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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.