Finding the Fourth Proportional to 99,649,870.20, 149,474,805.30 and 58,667,239.80
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Solution
The fourth proportional to 99,649,870.20, 149,474,805.30 and 58,667,239.80 is: 88,000,859.70
Step by Step Solution
- Step 1: Write the proportion equation
99,649,870.20 : 149,474,805.30 = 58,667,239.80 : x - Step 2: Convert to fraction form
99,649,870.20/149,474,805.30 = 58,667,239.80/x - Step 3: Cross multiply
99,649,870.20x = 149,474,805.30 × 58,667,239.80 - Step 4: Simplify right side
99,649,870.20x = 8,769,274,246,593,411 - Step 5: Solve for x
x = 8,769,274,246,593,411/99,649,870.20 - Step 6: Final answer
x = 88,000,859.70
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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.