Finding the Fourth Proportional to 4,939,705,949.80, 7,409,558,924.70 and 2,490,825,821.80
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Solution
The fourth proportional to 4,939,705,949.80, 7,409,558,924.70 and 2,490,825,821.80 is: 3,736,238,732.70
Step by Step Solution
- Step 1: Write the proportion equation
4,939,705,949.80 : 7,409,558,924.70 = 2,490,825,821.80 : x - Step 2: Convert to fraction form
4,939,705,949.80/7,409,558,924.70 = 2,490,825,821.80/x - Step 3: Cross multiply
4,939,705,949.80x = 7,409,558,924.70 × 2,490,825,821.80 - Step 4: Simplify right side
4,939,705,949.80x = 18,455,920,697,791,401,984 - Step 5: Solve for x
x = 18,455,920,697,791,401,984/4,939,705,949.80 - Step 6: Final answer
x = 3,736,238,732.70
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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.