Finding the Fourth Proportional to 172,640,625.80, 258,960,938.70 and 44,989,809.80
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Solution
The fourth proportional to 172,640,625.80, 258,960,938.70 and 44,989,809.80 is: 67,484,714.70
Step by Step Solution
- Step 1: Write the proportion equation
172,640,625.80 : 258,960,938.70 = 44,989,809.80 : x - Step 2: Convert to fraction form
172,640,625.80/258,960,938.70 = 44,989,809.80/x - Step 3: Cross multiply
172,640,625.80x = 258,960,938.70 × 44,989,809.80 - Step 4: Simplify right side
172,640,625.80x = 11,650,603,377,742,458 - Step 5: Solve for x
x = 11,650,603,377,742,458/172,640,625.80 - Step 6: Final answer
x = 67,484,714.70
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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.