Finding the Fourth Proportional to 19,626,391.20, 29,383,599.60 and 17,386,903.20
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Solution
The fourth proportional to 19,626,391.20, 29,383,599.60 and 17,386,903.20 is: 26,030,756.07
Step by Step Solution
- Step 1: Write the proportion equation
19,626,391.20 : 29,383,599.60 = 17,386,903.20 : x - Step 2: Convert to fraction form
19,626,391.20/29,383,599.60 = 17,386,903.20/x - Step 3: Cross multiply
19,626,391.20x = 29,383,599.60 × 17,386,903.20 - Step 4: Simplify right side
19,626,391.20x = 510,889,801,912,758.75 - Step 5: Solve for x
x = 510,889,801,912,758.75/19,626,391.20 - Step 6: Final answer
x = 26,030,756.07
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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.