Finding the Fourth Proportional to 139,442,186.16, 209,188,817.08 and 57,516,372.97
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Solution
The fourth proportional to 139,442,186.16, 209,188,817.08 and 57,516,372.97 is: 86,285,093.17
Step by Step Solution
- Step 1: Write the proportion equation
139,442,186.16 : 209,188,817.08 = 57,516,372.97 : x - Step 2: Convert to fraction form
139,442,186.16/209,188,817.08 = 57,516,372.97/x - Step 3: Cross multiply
139,442,186.16x = 209,188,817.08 × 57,516,372.97 - Step 4: Simplify right side
139,442,186.16x = 12,031,782,024,326,386 - Step 5: Solve for x
x = 12,031,782,024,326,386/139,442,186.16 - Step 6: Final answer
x = 86,285,093.17
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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.