Finding the Fourth Proportional to 168,242,660.40, 252,363,990.60 and 103,619,434.80
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Solution
The fourth proportional to 168,242,660.40, 252,363,990.60 and 103,619,434.80 is: 155,429,152.20
Step by Step Solution
- Step 1: Write the proportion equation
168,242,660.40 : 252,363,990.60 = 103,619,434.80 : x - Step 2: Convert to fraction form
168,242,660.40/252,363,990.60 = 103,619,434.80/x - Step 3: Cross multiply
168,242,660.40x = 252,363,990.60 × 103,619,434.80 - Step 4: Simplify right side
168,242,660.40x = 26,149,814,069,844,512 - Step 5: Solve for x
x = 26,149,814,069,844,512/168,242,660.40 - Step 6: Final answer
x = 155,429,152.20
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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.