Finding the Fourth Proportional to 885,735,620.20, 1,328,603,430.30 and 880,633,786.60
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Solution
The fourth proportional to 885,735,620.20, 1,328,603,430.30 and 880,633,786.60 is: 1,320,950,679.90
Step by Step Solution
- Step 1: Write the proportion equation
885,735,620.20 : 1,328,603,430.30 = 880,633,786.60 : x - Step 2: Convert to fraction form
885,735,620.20/1,328,603,430.30 = 880,633,786.60/x - Step 3: Cross multiply
885,735,620.20x = 1,328,603,430.30 × 880,633,786.60 - Step 4: Simplify right side
885,735,620.20x = 1,170,013,069,714,838,272 - Step 5: Solve for x
x = 1,170,013,069,714,838,272/885,735,620.20 - Step 6: Final answer
x = 1,320,950,679.90
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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.