Finding the Fourth Proportional to 10,512,083.60, 15,768,125.40 and 8,386,319.60
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Solution
The fourth proportional to 10,512,083.60, 15,768,125.40 and 8,386,319.60 is: 12,579,479.40
Step by Step Solution
- Step 1: Write the proportion equation
10,512,083.60 : 15,768,125.40 = 8,386,319.60 : x - Step 2: Convert to fraction form
10,512,083.60/15,768,125.40 = 8,386,319.60/x - Step 3: Cross multiply
10,512,083.60x = 15,768,125.40 × 8,386,319.60 - Step 4: Simplify right side
10,512,083.60x = 132,236,539,097,277.84 - Step 5: Solve for x
x = 132,236,539,097,277.84/10,512,083.60 - Step 6: Final answer
x = 12,579,479.40
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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.