Finding the Fourth Proportional to 408,490,711.70, 612,364,058.85 and 149,643,515.30
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Solution
The fourth proportional to 408,490,711.70, 612,364,058.85 and 149,643,515.30 is: 224,328,993.99
Step by Step Solution
- Step 1: Write the proportion equation
408,490,711.70 : 612,364,058.85 = 149,643,515.30 : x - Step 2: Convert to fraction form
408,490,711.70/612,364,058.85 = 149,643,515.30/x - Step 3: Cross multiply
408,490,711.70x = 612,364,058.85 × 149,643,515.30 - Step 4: Simplify right side
408,490,711.70x = 91,636,310,409,690,080 - Step 5: Solve for x
x = 91,636,310,409,690,080/408,490,711.70 - Step 6: Final answer
x = 224,328,993.99
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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.