Finding the Fourth Proportional to 284,877,985.28, 393,131,619.68 and 154,497,793.28
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Solution
The fourth proportional to 284,877,985.28, 393,131,619.68 and 154,497,793.28 is: 213,206,954.72
Step by Step Solution
- Step 1: Write the proportion equation
284,877,985.28 : 393,131,619.68 = 154,497,793.28 : x - Step 2: Convert to fraction form
284,877,985.28/393,131,619.68 = 154,497,793.28/x - Step 3: Cross multiply
284,877,985.28x = 393,131,619.68 × 154,497,793.28 - Step 4: Simplify right side
284,877,985.28x = 60,737,967,709,152,224 - Step 5: Solve for x
x = 60,737,967,709,152,224/284,877,985.28 - Step 6: Final answer
x = 213,206,954.72
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.