Finding the Fourth Proportional to 2,977,730,190.40, 4,466,763,247.20 and 907,519,489.60
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Solution
The fourth proportional to 2,977,730,190.40, 4,466,763,247.20 and 907,519,489.60 is: 1,361,330,423.87
Step by Step Solution
- Step 1: Write the proportion equation
2,977,730,190.40 : 4,466,763,247.20 = 907,519,489.60 : x - Step 2: Convert to fraction form
2,977,730,190.40/4,466,763,247.20 = 907,519,489.60/x - Step 3: Cross multiply
2,977,730,190.40x = 4,466,763,247.20 × 907,519,489.60 - Step 4: Simplify right side
2,977,730,190.40x = 4,053,674,702,262,982,656 - Step 5: Solve for x
x = 4,053,674,702,262,982,656/2,977,730,190.40 - Step 6: Final answer
x = 1,361,330,423.87
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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.