Finding the Fourth Proportional to 19,610,143.20, 29,415,214.80 and 18,728,344.80
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Solution
The fourth proportional to 19,610,143.20, 29,415,214.80 and 18,728,344.80 is: 28,092,517.20
Step by Step Solution
- Step 1: Write the proportion equation
19,610,143.20 : 29,415,214.80 = 18,728,344.80 : x - Step 2: Convert to fraction form
19,610,143.20/29,415,214.80 = 18,728,344.80/x - Step 3: Cross multiply
19,610,143.20x = 29,415,214.80 × 18,728,344.80 - Step 4: Simplify right side
19,610,143.20x = 550,898,285,140,463.06 - Step 5: Solve for x
x = 550,898,285,140,463.06/19,610,143.20 - Step 6: Final answer
x = 28,092,517.20
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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.