Finding the Fourth Proportional to 272,736,983.70, 376,283,678.85 and 155,232,914.58
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Solution
The fourth proportional to 272,736,983.70, 376,283,678.85 and 155,232,914.58 is: 214,168,285.45
Step by Step Solution
- Step 1: Write the proportion equation
272,736,983.70 : 376,283,678.85 = 155,232,914.58 : x - Step 2: Convert to fraction form
272,736,983.70/376,283,678.85 = 155,232,914.58/x - Step 3: Cross multiply
272,736,983.70x = 376,283,678.85 × 155,232,914.58 - Step 4: Simplify right side
272,736,983.70x = 58,411,612,176,770,208 - Step 5: Solve for x
x = 58,411,612,176,770,208/272,736,983.70 - Step 6: Final answer
x = 214,168,285.45
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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.