Finding the Fourth Proportional to 99,696,312.90, 149,597,157.09 and 70,737,304.02
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Solution
The fourth proportional to 99,696,312.90, 149,597,157.09 and 70,737,304.02 is: 106,143,339.45
Step by Step Solution
- Step 1: Write the proportion equation
99,696,312.90 : 149,597,157.09 = 70,737,304.02 : x - Step 2: Convert to fraction form
99,696,312.90/149,597,157.09 = 70,737,304.02/x - Step 3: Cross multiply
99,696,312.90x = 149,597,157.09 × 70,737,304.02 - Step 4: Simplify right side
99,696,312.90x = 10,582,099,581,603,028 - Step 5: Solve for x
x = 10,582,099,581,603,028/99,696,312.90 - Step 6: Final answer
x = 106,143,339.45
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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.