Finding the Fourth Proportional to 379,639,153.98, 569,340,974.79 and 133,938,332.10
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Solution
The fourth proportional to 379,639,153.98, 569,340,974.79 and 133,938,332.10 is: 200,865,953.26
Step by Step Solution
- Step 1: Write the proportion equation
379,639,153.98 : 569,340,974.79 = 133,938,332.10 : x - Step 2: Convert to fraction form
379,639,153.98/569,340,974.79 = 133,938,332.10/x - Step 3: Cross multiply
379,639,153.98x = 569,340,974.79 × 133,938,332.10 - Step 4: Simplify right side
379,639,153.98x = 76,256,580,559,560,736 - Step 5: Solve for x
x = 76,256,580,559,560,736/379,639,153.98 - Step 6: Final answer
x = 200,865,953.26
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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.