Finding the Fourth Proportional to 5,246,254,519.20, 7,872,405,087.60 and 1,977,049,936.80
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Solution
The fourth proportional to 5,246,254,519.20, 7,872,405,087.60 and 1,977,049,936.80 is: 2,966,714,238.50
Step by Step Solution
- Step 1: Write the proportion equation
5,246,254,519.20 : 7,872,405,087.60 = 1,977,049,936.80 : x - Step 2: Convert to fraction form
5,246,254,519.20/7,872,405,087.60 = 1,977,049,936.80/x - Step 3: Cross multiply
5,246,254,519.20x = 7,872,405,087.60 × 1,977,049,936.80 - Step 4: Simplify right side
5,246,254,519.20x = 15,564,137,980,903,579,648 - Step 5: Solve for x
x = 15,564,137,980,903,579,648/5,246,254,519.20 - Step 6: Final answer
x = 2,966,714,238.50
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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.