Finding the Fourth Proportional to 19,589,036.80, 29,383,555.20 and 6,805,292.80
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Solution
The fourth proportional to 19,589,036.80, 29,383,555.20 and 6,805,292.80 is: 10,207,939.20
Step by Step Solution
- Step 1: Write the proportion equation
19,589,036.80 : 29,383,555.20 = 6,805,292.80 : x - Step 2: Convert to fraction form
19,589,036.80/29,383,555.20 = 6,805,292.80/x - Step 3: Cross multiply
19,589,036.80x = 29,383,555.20 × 6,805,292.80 - Step 4: Simplify right side
19,589,036.80x = 199,963,696,640,962.56 - Step 5: Solve for x
x = 199,963,696,640,962.56/19,589,036.80 - Step 6: Final answer
x = 10,207,939.20
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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.