Finding the Fourth Proportional to 54,013,649.36, 81,023,955.50 and 18,994,467.68
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Solution
The fourth proportional to 54,013,649.36, 81,023,955.50 and 18,994,467.68 is: 28,492,925.81
Step by Step Solution
- Step 1: Write the proportion equation
54,013,649.36 : 81,023,955.50 = 18,994,467.68 : x - Step 2: Convert to fraction form
54,013,649.36/81,023,955.50 = 18,994,467.68/x - Step 3: Cross multiply
54,013,649.36x = 81,023,955.50 × 18,994,467.68 - Step 4: Simplify right side
54,013,649.36x = 1,539,006,903,692,874.75 - Step 5: Solve for x
x = 1,539,006,903,692,874.75/54,013,649.36 - Step 6: Final answer
x = 28,492,925.81
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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.