Finding the Fourth Proportional to 538,532,379.64, 807,798,540.36 and 129,588,573.88
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Solution
The fourth proportional to 538,532,379.64, 807,798,540.36 and 129,588,573.88 is: 194,382,853.82
Step by Step Solution
- Step 1: Write the proportion equation
538,532,379.64 : 807,798,540.36 = 129,588,573.88 : x - Step 2: Convert to fraction form
538,532,379.64/807,798,540.36 = 129,588,573.88/x - Step 3: Cross multiply
538,532,379.64x = 807,798,540.36 × 129,588,573.88 - Step 4: Simplify right side
538,532,379.64x = 104,681,460,827,598,016 - Step 5: Solve for x
x = 104,681,460,827,598,016/538,532,379.64 - Step 6: Final answer
x = 194,382,853.82
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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.