Finding the Fourth Proportional to 28,949,649.92, 39,950,625.94 and 15,718,846.68
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Solution
The fourth proportional to 28,949,649.92, 39,950,625.94 and 15,718,846.68 is: 21,692,067.63
Step by Step Solution
- Step 1: Write the proportion equation
28,949,649.92 : 39,950,625.94 = 15,718,846.68 : x - Step 2: Convert to fraction form
28,949,649.92/39,950,625.94 = 15,718,846.68/x - Step 3: Cross multiply
28,949,649.92x = 39,950,625.94 × 15,718,846.68 - Step 4: Simplify right side
28,949,649.92x = 627,977,763,920,890.88 - Step 5: Solve for x
x = 627,977,763,920,890.88/28,949,649.92 - Step 6: Final answer
x = 21,692,067.63
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.