Finding the Fourth Proportional to 1,165,389,422.40, 1,747,860,184.80 and 347,528,404.80
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Solution
The fourth proportional to 1,165,389,422.40, 1,747,860,184.80 and 347,528,404.80 is: 521,225,823.88
Step by Step Solution
- Step 1: Write the proportion equation
1,165,389,422.40 : 1,747,860,184.80 = 347,528,404.80 : x - Step 2: Convert to fraction form
1,165,389,422.40/1,747,860,184.80 = 347,528,404.80/x - Step 3: Cross multiply
1,165,389,422.40x = 1,747,860,184.80 × 347,528,404.80 - Step 4: Simplify right side
1,165,389,422.40x = 607,431,061,836,977,152 - Step 5: Solve for x
x = 607,431,061,836,977,152/1,165,389,422.40 - Step 6: Final answer
x = 521,225,823.88
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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.