Finding the Fourth Proportional to 291,255,534.90, 436,883,302.35 and 266,313,237.30
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Solution
The fourth proportional to 291,255,534.90, 436,883,302.35 and 266,313,237.30 is: 399,469,855.95
Step by Step Solution
- Step 1: Write the proportion equation
291,255,534.90 : 436,883,302.35 = 266,313,237.30 : x - Step 2: Convert to fraction form
291,255,534.90/436,883,302.35 = 266,313,237.30/x - Step 3: Cross multiply
291,255,534.90x = 436,883,302.35 × 266,313,237.30 - Step 4: Simplify right side
291,255,534.90x = 116,347,806,571,143,216 - Step 5: Solve for x
x = 116,347,806,571,143,216/291,255,534.90 - Step 6: Final answer
x = 399,469,855.95
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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.