Finding the Fourth Proportional to 885,809,211.20, 1,328,713,816.80 and 834,790,875.20
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Solution
The fourth proportional to 885,809,211.20, 1,328,713,816.80 and 834,790,875.20 is: 1,252,186,312.80
Step by Step Solution
- Step 1: Write the proportion equation
885,809,211.20 : 1,328,713,816.80 = 834,790,875.20 : x - Step 2: Convert to fraction form
885,809,211.20/1,328,713,816.80 = 834,790,875.20/x - Step 3: Cross multiply
885,809,211.20x = 1,328,713,816.80 × 834,790,875.20 - Step 4: Simplify right side
885,809,211.20x = 1,109,198,170,016,804,480 - Step 5: Solve for x
x = 1,109,198,170,016,804,480/885,809,211.20 - Step 6: Final answer
x = 1,252,186,312.80
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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.