Finding the Fourth Proportional to 132,134,600.70, 198,201,901.05 and 91,319,931.90
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Solution
The fourth proportional to 132,134,600.70, 198,201,901.05 and 91,319,931.90 is: 136,979,897.85
Step by Step Solution
- Step 1: Write the proportion equation
132,134,600.70 : 198,201,901.05 = 91,319,931.90 : x - Step 2: Convert to fraction form
132,134,600.70/198,201,901.05 = 91,319,931.90/x - Step 3: Cross multiply
132,134,600.70x = 198,201,901.05 × 91,319,931.90 - Step 4: Simplify right side
132,134,600.70x = 18,099,784,106,336,540 - Step 5: Solve for x
x = 18,099,784,106,336,540/132,134,600.70 - Step 6: Final answer
x = 136,979,897.85
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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.