Finding the Fourth Proportional to 228,936,946.05, 316,015,163.78 and 136,117,232.46
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Solution
The fourth proportional to 228,936,946.05, 316,015,163.78 and 136,117,232.46 is: 187,890,640.85
Step by Step Solution
- Step 1: Write the proportion equation
228,936,946.05 : 316,015,163.78 = 136,117,232.46 : x - Step 2: Convert to fraction form
228,936,946.05/316,015,163.78 = 136,117,232.46/x - Step 3: Cross multiply
228,936,946.05x = 316,015,163.78 × 136,117,232.46 - Step 4: Simplify right side
228,936,946.05x = 43,015,109,508,446,648 - Step 5: Solve for x
x = 43,015,109,508,446,648/228,936,946.05 - Step 6: Final answer
x = 187,890,640.85
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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.