Finding the Fourth Proportional to 1,149,448,949.20, 1,724,173,423.80 and 504,476,405.20
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Solution
The fourth proportional to 1,149,448,949.20, 1,724,173,423.80 and 504,476,405.20 is: 756,714,607.80
Step by Step Solution
- Step 1: Write the proportion equation
1,149,448,949.20 : 1,724,173,423.80 = 504,476,405.20 : x - Step 2: Convert to fraction form
1,149,448,949.20/1,724,173,423.80 = 504,476,405.20/x - Step 3: Cross multiply
1,149,448,949.20x = 1,724,173,423.80 × 504,476,405.20 - Step 4: Simplify right side
1,149,448,949.20x = 869,804,810,780,000,128 - Step 5: Solve for x
x = 869,804,810,780,000,128/1,149,448,949.20 - Step 6: Final answer
x = 756,714,607.80
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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.