Finding the Fourth Proportional to 139,995,347.05, 193,266,218.16 and 102,276,209.08
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Solution
The fourth proportional to 139,995,347.05, 193,266,218.16 and 102,276,209.08 is: 141,194,236.47
Step by Step Solution
- Step 1: Write the proportion equation
139,995,347.05 : 193,266,218.16 = 102,276,209.08 : x - Step 2: Convert to fraction form
139,995,347.05/193,266,218.16 = 102,276,209.08/x - Step 3: Cross multiply
139,995,347.05x = 193,266,218.16 × 102,276,209.08 - Step 4: Simplify right side
139,995,347.05x = 19,766,536,136,633,052 - Step 5: Solve for x
x = 19,766,536,136,633,052/139,995,347.05 - Step 6: Final answer
x = 141,194,236.47
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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.