Finding the Fourth Proportional to 1,064,485,809.40, 1,597,923,107.70 and 823,218,302.20
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Solution
The fourth proportional to 1,064,485,809.40, 1,597,923,107.70 and 823,218,302.20 is: 1,235,751,135.57
Step by Step Solution
- Step 1: Write the proportion equation
1,064,485,809.40 : 1,597,923,107.70 = 823,218,302.20 : x - Step 2: Convert to fraction form
1,064,485,809.40/1,597,923,107.70 = 823,218,302.20/x - Step 3: Cross multiply
1,064,485,809.40x = 1,597,923,107.70 × 823,218,302.20 - Step 4: Simplify right side
1,064,485,809.40x = 1,315,439,547,766,941,952 - Step 5: Solve for x
x = 1,315,439,547,766,941,952/1,064,485,809.40 - Step 6: Final answer
x = 1,235,751,135.57
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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.