Finding the Fourth Proportional to 72,052,950.89, 99,358,752.08 and 61,633,458.99
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Solution
The fourth proportional to 72,052,950.89, 99,358,752.08 and 61,633,458.99 is: 84,990,600.61
Step by Step Solution
- Step 1: Write the proportion equation
72,052,950.89 : 99,358,752.08 = 61,633,458.99 : x - Step 2: Convert to fraction form
72,052,950.89/99,358,752.08 = 61,633,458.99/x - Step 3: Cross multiply
72,052,950.89x = 99,358,752.08 × 61,633,458.99 - Step 4: Simplify right side
72,052,950.89x = 6,123,823,571,774,341 - Step 5: Solve for x
x = 6,123,823,571,774,341/72,052,950.89 - Step 6: Final answer
x = 84,990,600.61
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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.