Finding the Fourth Proportional to 65,781,026.84, 90,776,717.70 and 36,411,729.32
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Solution
The fourth proportional to 65,781,026.84, 90,776,717.70 and 36,411,729.32 is: 50,247,577.95
Step by Step Solution
- Step 1: Write the proportion equation
65,781,026.84 : 90,776,717.70 = 36,411,729.32 : x - Step 2: Convert to fraction form
65,781,026.84/90,776,717.70 = 36,411,729.32/x - Step 3: Cross multiply
65,781,026.84x = 90,776,717.70 × 36,411,729.32 - Step 4: Simplify right side
65,781,026.84x = 3,305,337,273,450,453 - Step 5: Solve for x
x = 3,305,337,273,450,453/65,781,026.84 - Step 6: Final answer
x = 50,247,577.95
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.