Finding the Fourth Proportional to 472,393,066.60, 708,589,599.90 and 265,768,805.80
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Solution
The fourth proportional to 472,393,066.60, 708,589,599.90 and 265,768,805.80 is: 398,653,208.70
Step by Step Solution
- Step 1: Write the proportion equation
472,393,066.60 : 708,589,599.90 = 265,768,805.80 : x - Step 2: Convert to fraction form
472,393,066.60/708,589,599.90 = 265,768,805.80/x - Step 3: Cross multiply
472,393,066.60x = 708,589,599.90 × 265,768,805.80 - Step 4: Simplify right side
472,393,066.60x = 188,321,011,767,722,816 - Step 5: Solve for x
x = 188,321,011,767,722,816/472,393,066.60 - Step 6: Final answer
x = 398,653,208.70
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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.