Finding the Fourth Proportional to 398,630,839.80, 597,946,259.70 and 183,639,991.80
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Solution
The fourth proportional to 398,630,839.80, 597,946,259.70 and 183,639,991.80 is: 275,459,987.70
Step by Step Solution
- Step 1: Write the proportion equation
398,630,839.80 : 597,946,259.70 = 183,639,991.80 : x - Step 2: Convert to fraction form
398,630,839.80/597,946,259.70 = 183,639,991.80/x - Step 3: Cross multiply
398,630,839.80x = 597,946,259.70 × 183,639,991.80 - Step 4: Simplify right side
398,630,839.80x = 109,806,846,228,148,688 - Step 5: Solve for x
x = 109,806,846,228,148,688/398,630,839.80 - Step 6: Final answer
x = 275,459,987.70
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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.