Finding the Fourth Proportional to 139,442,236.68, 209,188,892.76 and 57,516,423.36
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Solution
The fourth proportional to 139,442,236.68, 209,188,892.76 and 57,516,423.36 is: 86,285,168.72
Step by Step Solution
- Step 1: Write the proportion equation
139,442,236.68 : 209,188,892.76 = 57,516,423.36 : x - Step 2: Convert to fraction form
139,442,236.68/209,188,892.76 = 57,516,423.36/x - Step 3: Cross multiply
139,442,236.68x = 209,188,892.76 × 57,516,423.36 - Step 4: Simplify right side
139,442,236.68x = 12,031,796,918,193,798 - Step 5: Solve for x
x = 12,031,796,918,193,798/139,442,236.68 - Step 6: Final answer
x = 86,285,168.72
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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.