Finding the Fourth Proportional to 2,725,664,954.80, 4,088,497,432.20 and 979,137,252.40
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Solution
The fourth proportional to 2,725,664,954.80, 4,088,497,432.20 and 979,137,252.40 is: 1,468,705,878.60
Step by Step Solution
- Step 1: Write the proportion equation
2,725,664,954.80 : 4,088,497,432.20 = 979,137,252.40 : x - Step 2: Convert to fraction form
2,725,664,954.80/4,088,497,432.20 = 979,137,252.40/x - Step 3: Cross multiply
2,725,664,954.80x = 4,088,497,432.20 × 979,137,252.40 - Step 4: Simplify right side
2,725,664,954.80x = 4,003,200,142,208,762,880 - Step 5: Solve for x
x = 4,003,200,142,208,762,880/2,725,664,954.80 - Step 6: Final answer
x = 1,468,705,878.60
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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.