Finding the Fourth Proportional to 291,255,541.40, 436,883,312.10 and 266,313,243.80
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Solution
The fourth proportional to 291,255,541.40, 436,883,312.10 and 266,313,243.80 is: 399,469,865.70
Step by Step Solution
- Step 1: Write the proportion equation
291,255,541.40 : 436,883,312.10 = 266,313,243.80 : x - Step 2: Convert to fraction form
291,255,541.40/436,883,312.10 = 266,313,243.80/x - Step 3: Cross multiply
291,255,541.40x = 436,883,312.10 × 266,313,243.80 - Step 4: Simplify right side
291,255,541.40x = 116,347,812,007,438,800 - Step 5: Solve for x
x = 116,347,812,007,438,800/291,255,541.40 - Step 6: Final answer
x = 399,469,865.70
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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.