Finding the Fourth Proportional to 193,537,698.70, 290,306,548.05 and 72,353,404.30
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Solution
The fourth proportional to 193,537,698.70, 290,306,548.05 and 72,353,404.30 is: 108,530,106.45
Step by Step Solution
- Step 1: Write the proportion equation
193,537,698.70 : 290,306,548.05 = 72,353,404.30 : x - Step 2: Convert to fraction form
193,537,698.70/290,306,548.05 = 72,353,404.30/x - Step 3: Cross multiply
193,537,698.70x = 290,306,548.05 × 72,353,404.30 - Step 4: Simplify right side
193,537,698.70x = 21,004,667,041,999,028 - Step 5: Solve for x
x = 21,004,667,041,999,028/193,537,698.70 - Step 6: Final answer
x = 108,530,106.45
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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.