Finding the Fourth Proportional to 134,438,631.20, 201,657,946.80 and 43,571,405.60
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Solution
The fourth proportional to 134,438,631.20, 201,657,946.80 and 43,571,405.60 is: 65,357,108.40
Step by Step Solution
- Step 1: Write the proportion equation
134,438,631.20 : 201,657,946.80 = 43,571,405.60 : x - Step 2: Convert to fraction form
134,438,631.20/201,657,946.80 = 43,571,405.60/x - Step 3: Cross multiply
134,438,631.20x = 201,657,946.80 × 43,571,405.60 - Step 4: Simplify right side
134,438,631.20x = 8,786,520,192,486,023 - Step 5: Solve for x
x = 8,786,520,192,486,023/134,438,631.20 - Step 6: Final answer
x = 65,357,108.40
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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.