Finding the Fourth Proportional to 539,786,040.68, 809,977,830.47 and 263,439,543.97
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Solution
The fourth proportional to 539,786,040.68, 809,977,830.47 and 263,439,543.97 is: 395,305,128.71
Step by Step Solution
- Step 1: Write the proportion equation
539,786,040.68 : 809,977,830.47 = 263,439,543.97 : x - Step 2: Convert to fraction form
539,786,040.68/809,977,830.47 = 263,439,543.97/x - Step 3: Cross multiply
539,786,040.68x = 809,977,830.47 × 263,439,543.97 - Step 4: Simplify right side
539,786,040.68x = 213,380,190,285,509,952 - Step 5: Solve for x
x = 213,380,190,285,509,952/539,786,040.68 - Step 6: Final answer
x = 395,305,128.71
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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.