Finding the Fourth Proportional to 398,650,853.80, 597,976,280.70 and 183,660,005.80
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Solution
The fourth proportional to 398,650,853.80, 597,976,280.70 and 183,660,005.80 is: 275,490,008.70
Step by Step Solution
- Step 1: Write the proportion equation
398,650,853.80 : 597,976,280.70 = 183,660,005.80 : x - Step 2: Convert to fraction form
398,650,853.80/597,976,280.70 = 183,660,005.80/x - Step 3: Cross multiply
398,650,853.80x = 597,976,280.70 × 183,660,005.80 - Step 4: Simplify right side
398,650,853.80x = 109,824,327,181,624,448 - Step 5: Solve for x
x = 109,824,327,181,624,448/398,650,853.80 - Step 6: Final answer
x = 275,490,008.70
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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.