Finding the Fourth Proportional to 1,590,192,653.70, 2,385,288,980.55 and 620,844,269.70
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Solution
The fourth proportional to 1,590,192,653.70, 2,385,288,980.55 and 620,844,269.70 is: 931,266,404.55
Step by Step Solution
- Step 1: Write the proportion equation
1,590,192,653.70 : 2,385,288,980.55 = 620,844,269.70 : x - Step 2: Convert to fraction form
1,590,192,653.70/2,385,288,980.55 = 620,844,269.70/x - Step 3: Cross multiply
1,590,192,653.70x = 2,385,288,980.55 × 620,844,269.70 - Step 4: Simplify right side
1,590,192,653.70x = 1,480,892,995,153,022,464 - Step 5: Solve for x
x = 1,480,892,995,153,022,464/1,590,192,653.70 - Step 6: Final answer
x = 931,266,404.55
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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.