Finding the Fourth Proportional to 10,106,718.40, 15,160,733.70 and 5,323,749.40
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Solution
The fourth proportional to 10,106,718.40, 15,160,733.70 and 5,323,749.40 is: 7,985,969.70
Step by Step Solution
- Step 1: Write the proportion equation
10,106,718.40 : 15,160,733.70 = 5,323,749.40 : x - Step 2: Convert to fraction form
10,106,718.40/15,160,733.70 = 5,323,749.40/x - Step 3: Cross multiply
10,106,718.40x = 15,160,733.70 × 5,323,749.40 - Step 4: Simplify right side
10,106,718.40x = 80,711,946,938,934.78 - Step 5: Solve for x
x = 80,711,946,938,934.78/10,106,718.40 - Step 6: Final answer
x = 7,985,969.70
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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.