Finding the Fourth Proportional to 129,235,420.20, 193,853,130.30 and 92,955,714.60
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Solution
The fourth proportional to 129,235,420.20, 193,853,130.30 and 92,955,714.60 is: 139,433,571.90
Step by Step Solution
- Step 1: Write the proportion equation
129,235,420.20 : 193,853,130.30 = 92,955,714.60 : x - Step 2: Convert to fraction form
129,235,420.20/193,853,130.30 = 92,955,714.60/x - Step 3: Cross multiply
129,235,420.20x = 193,853,130.30 × 92,955,714.60 - Step 4: Simplify right side
129,235,420.20x = 18,019,756,254,483,412 - Step 5: Solve for x
x = 18,019,756,254,483,412/129,235,420.20 - Step 6: Final answer
x = 139,433,571.90
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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.