Finding the Fourth Proportional to 659,946,205.80, 989,919,308.70 and 297,149,149.80
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Solution
The fourth proportional to 659,946,205.80, 989,919,308.70 and 297,149,149.80 is: 445,723,724.70
Step by Step Solution
- Step 1: Write the proportion equation
659,946,205.80 : 989,919,308.70 = 297,149,149.80 : x - Step 2: Convert to fraction form
659,946,205.80/989,919,308.70 = 297,149,149.80/x - Step 3: Cross multiply
659,946,205.80x = 989,919,308.70 × 297,149,149.80 - Step 4: Simplify right side
659,946,205.80x = 294,153,680,950,808,768 - Step 5: Solve for x
x = 294,153,680,950,808,768/659,946,205.80 - Step 6: Final answer
x = 445,723,724.70
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1.5x scale
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.