Finding the Fourth Proportional to 525,175,945.11, 787,059,761.99 and 408,731,910.03
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Solution
The fourth proportional to 525,175,945.11, 787,059,761.99 and 408,731,910.03 is: 612,549,837.48
Step by Step Solution
- Step 1: Write the proportion equation
525,175,945.11 : 787,059,761.99 = 408,731,910.03 : x - Step 2: Convert to fraction form
525,175,945.11/787,059,761.99 = 408,731,910.03/x - Step 3: Cross multiply
525,175,945.11x = 787,059,761.99 × 408,731,910.03 - Step 4: Simplify right side
525,175,945.11x = 321,696,439,823,886,208 - Step 5: Solve for x
x = 321,696,439,823,886,208/525,175,945.11 - Step 6: Final answer
x = 612,549,837.48
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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.