Finding the Fourth Proportional to 505,596,759.40, 758,395,139.10 and 352,415,780.20
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Solution
The fourth proportional to 505,596,759.40, 758,395,139.10 and 352,415,780.20 is: 528,623,670.30
Step by Step Solution
- Step 1: Write the proportion equation
505,596,759.40 : 758,395,139.10 = 352,415,780.20 : x - Step 2: Convert to fraction form
505,596,759.40/758,395,139.10 = 352,415,780.20/x - Step 3: Cross multiply
505,596,759.40x = 758,395,139.10 × 352,415,780.20 - Step 4: Simplify right side
505,596,759.40x = 267,270,414,645,814,016 - Step 5: Solve for x
x = 267,270,414,645,814,016/505,596,759.40 - Step 6: Final answer
x = 528,623,670.30
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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.