Finding the Fourth Proportional to 885,920,028.80, 1,328,880,043.20 and 425,747,235.20
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Solution
The fourth proportional to 885,920,028.80, 1,328,880,043.20 and 425,747,235.20 is: 638,620,852.80
Step by Step Solution
- Step 1: Write the proportion equation
885,920,028.80 : 1,328,880,043.20 = 425,747,235.20 : x - Step 2: Convert to fraction form
885,920,028.80/1,328,880,043.20 = 425,747,235.20/x - Step 3: Cross multiply
885,920,028.80x = 1,328,880,043.20 × 425,747,235.20 - Step 4: Simplify right side
885,920,028.80x = 565,767,004,304,856,576 - Step 5: Solve for x
x = 565,767,004,304,856,576/885,920,028.80 - Step 6: Final answer
x = 638,620,852.80
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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.