Finding the Fourth Proportional to 3,498,321,657.80, 5,249,498,025.90 and 1,318,851,936.20
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Solution
The fourth proportional to 3,498,321,657.80, 5,249,498,025.90 and 1,318,851,936.20 is: 1,979,037,753.75
Step by Step Solution
- Step 1: Write the proportion equation
3,498,321,657.80 : 5,249,498,025.90 = 1,318,851,936.20 : x - Step 2: Convert to fraction form
3,498,321,657.80/5,249,498,025.90 = 1,318,851,936.20/x - Step 3: Cross multiply
3,498,321,657.80x = 5,249,498,025.90 × 1,318,851,936.20 - Step 4: Simplify right side
3,498,321,657.80x = 6,923,310,635,536,292,864 - Step 5: Solve for x
x = 6,923,310,635,536,292,864/3,498,321,657.80 - Step 6: Final answer
x = 1,979,037,753.75
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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.