Finding the Fourth Proportional to 1,160,195,542.87, 1,601,070,021.88 and 631,563,542.07
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Solution
The fourth proportional to 1,160,195,542.87, 1,601,070,021.88 and 631,563,542.07 is: 871,557,782.08
Step by Step Solution
- Step 1: Write the proportion equation
1,160,195,542.87 : 1,601,070,021.88 = 631,563,542.07 : x - Step 2: Convert to fraction form
1,160,195,542.87/1,601,070,021.88 = 631,563,542.07/x - Step 3: Cross multiply
1,160,195,542.87x = 1,601,070,021.88 × 631,563,542.07 - Step 4: Simplify right side
1,160,195,542.87x = 1,011,177,454,117,467,520 - Step 5: Solve for x
x = 1,011,177,454,117,467,520/1,160,195,542.87 - Step 6: Final answer
x = 871,557,782.08
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.