Finding the Fourth Proportional to 1,303,884,329.40, 1,955,154,647.70 and 485,575,414.20
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Solution
The fourth proportional to 1,303,884,329.40, 1,955,154,647.70 and 485,575,414.20 is: 728,112,921.12
Step by Step Solution
- Step 1: Write the proportion equation
1,303,884,329.40 : 1,955,154,647.70 = 485,575,414.20 : x - Step 2: Convert to fraction form
1,303,884,329.40/1,955,154,647.70 = 485,575,414.20/x - Step 3: Cross multiply
1,303,884,329.40x = 1,955,154,647.70 × 485,575,414.20 - Step 4: Simplify right side
1,303,884,329.40x = 949,375,027,881,982,592 - Step 5: Solve for x
x = 949,375,027,881,982,592/1,303,884,329.40 - Step 6: Final answer
x = 728,112,921.12
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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.