Finding the Fourth Proportional to 197,708,709.12, 296,612,459.52 and 139,529,982.08
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Solution
The fourth proportional to 197,708,709.12, 296,612,459.52 and 139,529,982.08 is: 209,329,833.50
Step by Step Solution
- Step 1: Write the proportion equation
197,708,709.12 : 296,612,459.52 = 139,529,982.08 : x - Step 2: Convert to fraction form
197,708,709.12/296,612,459.52 = 139,529,982.08/x - Step 3: Cross multiply
197,708,709.12x = 296,612,459.52 × 139,529,982.08 - Step 4: Simplify right side
197,708,709.12x = 41,386,331,161,530,328 - Step 5: Solve for x
x = 41,386,331,161,530,328/197,708,709.12 - Step 6: Final answer
x = 209,329,833.50
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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.