Finding the Fourth Proportional to 19,675,235.20, 29,512,852.80 and 15,565,424.80
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Solution
The fourth proportional to 19,675,235.20, 29,512,852.80 and 15,565,424.80 is: 23,348,137.20
Step by Step Solution
- Step 1: Write the proportion equation
19,675,235.20 : 29,512,852.80 = 15,565,424.80 : x - Step 2: Convert to fraction form
19,675,235.20/29,512,852.80 = 15,565,424.80/x - Step 3: Cross multiply
19,675,235.20x = 29,512,852.80 × 15,565,424.80 - Step 4: Simplify right side
19,675,235.20x = 459,380,090,891,869.50 - Step 5: Solve for x
x = 459,380,090,891,869.50/19,675,235.20 - Step 6: Final answer
x = 23,348,137.20
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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.