Finding the Fourth Proportional to 99,863,758.40, 149,795,637.60 and 69,605,787.20
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Solution
The fourth proportional to 99,863,758.40, 149,795,637.60 and 69,605,787.20 is: 104,408,680.80
Step by Step Solution
- Step 1: Write the proportion equation
99,863,758.40 : 149,795,637.60 = 69,605,787.20 : x - Step 2: Convert to fraction form
99,863,758.40/149,795,637.60 = 69,605,787.20/x - Step 3: Cross multiply
99,863,758.40x = 149,795,637.60 × 69,605,787.20 - Step 4: Simplify right side
99,863,758.40x = 10,426,643,274,273,918 - Step 5: Solve for x
x = 10,426,643,274,273,918/99,863,758.40 - Step 6: Final answer
x = 104,408,680.80
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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.