Finding the Fourth Proportional to 1,123,821,718.16, 1,685,692,163.30 and 294,768,738.99
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Solution
The fourth proportional to 1,123,821,718.16, 1,685,692,163.30 and 294,768,738.99 is: 442,142,508.26
Step by Step Solution
- Step 1: Write the proportion equation
1,123,821,718.16 : 1,685,692,163.30 = 294,768,738.99 : x - Step 2: Convert to fraction form
1,123,821,718.16/1,685,692,163.30 = 294,768,738.99/x - Step 3: Cross multiply
1,123,821,718.16x = 1,685,692,163.30 × 294,768,738.99 - Step 4: Simplify right side
1,123,821,718.16x = 496,889,353,299,792,320 - Step 5: Solve for x
x = 496,889,353,299,792,320/1,123,821,718.16 - Step 6: Final answer
x = 442,142,508.26
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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.