Finding the Fourth Proportional to 19,725,034.80, 29,587,552.20 and 13,640,625.84
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Solution
The fourth proportional to 19,725,034.80, 29,587,552.20 and 13,640,625.84 is: 20,460,938.76
Step by Step Solution
- Step 1: Write the proportion equation
19,725,034.80 : 29,587,552.20 = 13,640,625.84 : x - Step 2: Convert to fraction form
19,725,034.80/29,587,552.20 = 13,640,625.84/x - Step 3: Cross multiply
19,725,034.80x = 29,587,552.20 × 13,640,625.84 - Step 4: Simplify right side
19,725,034.80x = 403,592,729,081,668.81 - Step 5: Solve for x
x = 403,592,729,081,668.81/19,725,034.80 - Step 6: Final answer
x = 20,460,938.76
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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.