Finding the Fourth Proportional to 892,254,268.80, 1,338,381,403.20 and 708,588,259.20
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Solution
The fourth proportional to 892,254,268.80, 1,338,381,403.20 and 708,588,259.20 is: 1,062,882,388.80
Step by Step Solution
- Step 1: Write the proportion equation
892,254,268.80 : 1,338,381,403.20 = 708,588,259.20 : x - Step 2: Convert to fraction form
892,254,268.80/1,338,381,403.20 = 708,588,259.20/x - Step 3: Cross multiply
892,254,268.80x = 1,338,381,403.20 × 708,588,259.20 - Step 4: Simplify right side
892,254,268.80x = 948,361,348,639,141,376 - Step 5: Solve for x
x = 948,361,348,639,141,376/892,254,268.80 - Step 6: Final answer
x = 1,062,882,388.80
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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.