Finding the Fourth Proportional to 472,393,043.80, 708,589,565.70 and 395,865,539.80
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Solution
The fourth proportional to 472,393,043.80, 708,589,565.70 and 395,865,539.80 is: 593,798,309.70
Step by Step Solution
- Step 1: Write the proportion equation
472,393,043.80 : 708,589,565.70 = 395,865,539.80 : x - Step 2: Convert to fraction form
472,393,043.80/708,589,565.70 = 395,865,539.80/x - Step 3: Cross multiply
472,393,043.80x = 708,589,565.70 × 395,865,539.80 - Step 4: Simplify right side
472,393,043.80x = 280,506,190,922,478,080 - Step 5: Solve for x
x = 280,506,190,922,478,080/472,393,043.80 - Step 6: Final answer
x = 593,798,309.70
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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.