Finding the Fourth Proportional to 783,253,254.98, 1,080,968,772.50 and 448,770,144.66
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Solution
The fourth proportional to 783,253,254.98, 1,080,968,772.50 and 448,770,144.66 is: 619,348,223.99
Step by Step Solution
- Step 1: Write the proportion equation
783,253,254.98 : 1,080,968,772.50 = 448,770,144.66 : x - Step 2: Convert to fraction form
783,253,254.98/1,080,968,772.50 = 448,770,144.66/x - Step 3: Cross multiply
783,253,254.98x = 1,080,968,772.50 × 448,770,144.66 - Step 4: Simplify right side
783,253,254.98x = 485,106,512,405,523,776 - Step 5: Solve for x
x = 485,106,512,405,523,776/783,253,254.98 - Step 6: Final answer
x = 619,348,223.99
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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.