Finding the Fourth Proportional to 239,699,384.24, 330,785,145.06 and 129,691,097.24
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Solution
The fourth proportional to 239,699,384.24, 330,785,145.06 and 129,691,097.24 is: 178,973,711.38
Step by Step Solution
- Step 1: Write the proportion equation
239,699,384.24 : 330,785,145.06 = 129,691,097.24 : x - Step 2: Convert to fraction form
239,699,384.24/330,785,145.06 = 129,691,097.24/x - Step 3: Cross multiply
239,699,384.24x = 330,785,145.06 × 129,691,097.24 - Step 4: Simplify right side
239,699,384.24x = 42,899,888,413,523,968 - Step 5: Solve for x
x = 42,899,888,413,523,968/239,699,384.24 - Step 6: Final answer
x = 178,973,711.38
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1.5x scale
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.