Finding the Fourth Proportional to 1,057,202,470.35, 1,458,913,211.01 and 587,304,940.68
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Solution
The fourth proportional to 1,057,202,470.35, 1,458,913,211.01 and 587,304,940.68 is: 810,466,264.39
Step by Step Solution
- Step 1: Write the proportion equation
1,057,202,470.35 : 1,458,913,211.01 = 587,304,940.68 : x - Step 2: Convert to fraction form
1,057,202,470.35/1,458,913,211.01 = 587,304,940.68/x - Step 3: Cross multiply
1,057,202,470.35x = 1,458,913,211.01 × 587,304,940.68 - Step 4: Simplify right side
1,057,202,470.35x = 856,826,936,849,496,320 - Step 5: Solve for x
x = 856,826,936,849,496,320/1,057,202,470.35 - Step 6: Final answer
x = 810,466,264.39
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Double scale
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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.