Finding the Fourth Proportional to 2,085,320,585.80, 3,128,400,782.70 and 611,457,545.80
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Solution
The fourth proportional to 2,085,320,585.80, 3,128,400,782.70 and 611,457,545.80 is: 917,309,442.92
Step by Step Solution
- Step 1: Write the proportion equation
2,085,320,585.80 : 3,128,400,782.70 = 611,457,545.80 : x - Step 2: Convert to fraction form
2,085,320,585.80/3,128,400,782.70 = 611,457,545.80/x - Step 3: Cross multiply
2,085,320,585.80x = 3,128,400,782.70 × 611,457,545.80 - Step 4: Simplify right side
2,085,320,585.80x = 1,912,884,264,868,540,928 - Step 5: Solve for x
x = 1,912,884,264,868,540,928/2,085,320,585.80 - Step 6: Final answer
x = 917,309,442.92
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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.