Finding the Fourth Proportional to 930,799,648.80, 1,396,199,473.20 and 543,060,295.20
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Solution
The fourth proportional to 930,799,648.80, 1,396,199,473.20 and 543,060,295.20 is: 814,590,442.80
Step by Step Solution
- Step 1: Write the proportion equation
930,799,648.80 : 1,396,199,473.20 = 543,060,295.20 : x - Step 2: Convert to fraction form
930,799,648.80/1,396,199,473.20 = 543,060,295.20/x - Step 3: Cross multiply
930,799,648.80x = 1,396,199,473.20 × 543,060,295.20 - Step 4: Simplify right side
930,799,648.80x = 758,220,498,074,076,544 - Step 5: Solve for x
x = 758,220,498,074,076,544/930,799,648.80 - Step 6: Final answer
x = 814,590,442.80
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Double scale
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Similar ratio
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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.