Finding the Fourth Proportional to 197,605,610.81, 272,819,694.74 and 127,163,608.76
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Solution
The fourth proportional to 197,605,610.81, 272,819,694.74 and 127,163,608.76 is: 175,565,545.85
Step by Step Solution
- Step 1: Write the proportion equation
197,605,610.81 : 272,819,694.74 = 127,163,608.76 : x - Step 2: Convert to fraction form
197,605,610.81/272,819,694.74 = 127,163,608.76/x - Step 3: Cross multiply
197,605,610.81x = 272,819,694.74 × 127,163,608.76 - Step 4: Simplify right side
197,605,610.81x = 34,692,736,923,939,992 - Step 5: Solve for x
x = 34,692,736,923,939,992/197,605,610.81 - Step 6: Final answer
x = 175,565,545.85
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.