Finding the Fourth Proportional to 19,306,021.90, 28,958,590.05 and 9,718,825.90
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Solution
The fourth proportional to 19,306,021.90, 28,958,590.05 and 9,718,825.90 is: 14,578,015.94
Step by Step Solution
- Step 1: Write the proportion equation
19,306,021.90 : 28,958,590.05 = 9,718,825.90 : x - Step 2: Convert to fraction form
19,306,021.90/28,958,590.05 = 9,718,825.90/x - Step 3: Cross multiply
19,306,021.90x = 28,958,590.05 × 9,718,825.90 - Step 4: Simplify right side
19,306,021.90x = 281,443,495,005,422.31 - Step 5: Solve for x
x = 281,443,495,005,422.31/19,306,021.90 - Step 6: Final answer
x = 14,578,015.94
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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.