Finding the Fourth Proportional to 4,939,705,952.80, 7,409,558,929.20 and 2,490,825,824.80
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Solution
The fourth proportional to 4,939,705,952.80, 7,409,558,929.20 and 2,490,825,824.80 is: 3,736,238,737.20
Step by Step Solution
- Step 1: Write the proportion equation
4,939,705,952.80 : 7,409,558,929.20 = 2,490,825,824.80 : x - Step 2: Convert to fraction form
4,939,705,952.80/7,409,558,929.20 = 2,490,825,824.80/x - Step 3: Cross multiply
4,939,705,952.80x = 7,409,558,929.20 × 2,490,825,824.80 - Step 4: Simplify right side
4,939,705,952.80x = 18,455,920,731,228,794,880 - Step 5: Solve for x
x = 18,455,920,731,228,794,880/4,939,705,952.80 - Step 6: Final answer
x = 3,736,238,737.20
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1.5x scale
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.