Finding the Fourth Proportional to 291,030,232.20, 436,545,348.30 and 187,718,101.80
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Solution
The fourth proportional to 291,030,232.20, 436,545,348.30 and 187,718,101.80 is: 281,577,152.70
Step by Step Solution
- Step 1: Write the proportion equation
291,030,232.20 : 436,545,348.30 = 187,718,101.80 : x - Step 2: Convert to fraction form
291,030,232.20/436,545,348.30 = 187,718,101.80/x - Step 3: Cross multiply
291,030,232.20x = 436,545,348.30 × 187,718,101.80 - Step 4: Simplify right side
291,030,232.20x = 81,947,464,132,495,872 - Step 5: Solve for x
x = 81,947,464,132,495,872/291,030,232.20 - Step 6: Final answer
x = 281,577,152.70
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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.