Finding the Fourth Proportional to 591,623,999.70, 887,435,999.55 and 319,526,207.70
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Solution
The fourth proportional to 591,623,999.70, 887,435,999.55 and 319,526,207.70 is: 479,289,311.55
Step by Step Solution
- Step 1: Write the proportion equation
591,623,999.70 : 887,435,999.55 = 319,526,207.70 : x - Step 2: Convert to fraction form
591,623,999.70/887,435,999.55 = 319,526,207.70/x - Step 3: Cross multiply
591,623,999.70x = 887,435,999.55 × 319,526,207.70 - Step 4: Simplify right side
591,623,999.70x = 283,559,059,512,670,368 - Step 5: Solve for x
x = 283,559,059,512,670,368/591,623,999.70 - Step 6: Final answer
x = 479,289,311.55
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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.