Finding the Fourth Proportional to 1,195,690,661.70, 1,793,535,992.55 and 550,718,117.70
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Solution
The fourth proportional to 1,195,690,661.70, 1,793,535,992.55 and 550,718,117.70 is: 826,077,176.55
Step by Step Solution
- Step 1: Write the proportion equation
1,195,690,661.70 : 1,793,535,992.55 = 550,718,117.70 : x - Step 2: Convert to fraction form
1,195,690,661.70/1,793,535,992.55 = 550,718,117.70/x - Step 3: Cross multiply
1,195,690,661.70x = 1,793,535,992.55 × 550,718,117.70 - Step 4: Simplify right side
1,195,690,661.70x = 987,732,765,844,337,280 - Step 5: Solve for x
x = 987,732,765,844,337,280/1,195,690,661.70 - Step 6: Final answer
x = 826,077,176.55
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Double scale
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Similar ratio
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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.