Finding the Fourth Proportional to 579,944,471.80, 869,916,707.70 and 196,992,023.80
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Solution
The fourth proportional to 579,944,471.80, 869,916,707.70 and 196,992,023.80 is: 295,488,035.70
Step by Step Solution
- Step 1: Write the proportion equation
579,944,471.80 : 869,916,707.70 = 196,992,023.80 : x - Step 2: Convert to fraction form
579,944,471.80/869,916,707.70 = 196,992,023.80/x - Step 3: Cross multiply
579,944,471.80x = 869,916,707.70 × 196,992,023.80 - Step 4: Simplify right side
579,944,471.80x = 171,366,652,787,256,064 - Step 5: Solve for x
x = 171,366,652,787,256,064/579,944,471.80 - Step 6: Final answer
x = 295,488,035.70
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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.