Finding the Fourth Proportional to 83,443,212.40, 125,164,818.60 and 70,720,121.20
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Solution
The fourth proportional to 83,443,212.40, 125,164,818.60 and 70,720,121.20 is: 106,080,181.80
Step by Step Solution
- Step 1: Write the proportion equation
83,443,212.40 : 125,164,818.60 = 70,720,121.20 : x - Step 2: Convert to fraction form
83,443,212.40/125,164,818.60 = 70,720,121.20/x - Step 3: Cross multiply
83,443,212.40x = 125,164,818.60 × 70,720,121.20 - Step 4: Simplify right side
83,443,212.40x = 8,851,671,141,368,014 - Step 5: Solve for x
x = 8,851,671,141,368,014/83,443,212.40 - Step 6: Final answer
x = 106,080,181.80
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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.