Finding the Fourth Proportional to 151,600,239.24, 209,208,960.68 and 81,985,620.12
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Solution
The fourth proportional to 151,600,239.24, 209,208,960.68 and 81,985,620.12 is: 113,140,496.76
Step by Step Solution
- Step 1: Write the proportion equation
151,600,239.24 : 209,208,960.68 = 81,985,620.12 : x - Step 2: Convert to fraction form
151,600,239.24/209,208,960.68 = 81,985,620.12/x - Step 3: Cross multiply
151,600,239.24x = 209,208,960.68 × 81,985,620.12 - Step 4: Simplify right side
151,600,239.24x = 17,152,126,376,010,498 - Step 5: Solve for x
x = 17,152,126,376,010,498/151,600,239.24 - Step 6: Final answer
x = 113,140,496.76
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.